./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-wireless-rtlwifi-rtl8192se-rtl8192se.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-wireless-rtlwifi-rtl8192se-rtl8192se.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 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 08:38:54,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 08:38:54,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 08:38:54,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 08:38:54,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 08:38:54,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 08:38:54,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 08:38:54,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 08:38:54,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 08:38:54,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 08:38:54,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 08:38:54,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 08:38:54,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 08:38:54,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 08:38:54,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 08:38:54,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 08:38:54,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 08:38:54,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 08:38:54,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 08:38:54,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 08:38:54,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 08:38:54,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 08:38:54,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 08:38:54,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 08:38:54,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 08:38:54,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 08:38:54,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 08:38:54,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 08:38:54,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 08:38:54,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 08:38:54,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 08:38:54,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 08:38:54,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 08:38:54,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 08:38:54,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 08:38:54,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 08:38:54,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 08:38:54,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 08:38:54,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 08:38:54,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 08:38:54,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 08:38:54,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 08:38:54,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 08:38:54,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 08:38:54,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 08:38:54,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 08:38:54,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 08:38:54,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 08:38:54,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 08:38:54,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 08:38:54,572 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 08:38:54,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 08:38:54,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 08:38:54,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 08:38:54,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 08:38:54,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 08:38:54,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 08:38:54,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 08:38:54,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 08:38:54,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 08:38:54,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 08:38:54,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 08:38:54,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 08:38:54,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:38:54,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 08:38:54,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 08:38:54,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 08:38:54,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 08:38:54,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 08:38:54,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 08:38:54,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 08:38:54,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 08:38:54,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 08:38:54,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf [2021-11-17 08:38:54,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 08:38:54,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 08:38:54,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 08:38:54,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 08:38:54,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 08:38:54,806 INFO L432 ainManager$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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-17 08:38:54,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c2ffa7ad/269bd3046d03406f9da71bfe54b514ea/FLAGcea5216a3 [2021-11-17 08:38:55,818 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 08:38:55,819 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-17 08:38:55,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c2ffa7ad/269bd3046d03406f9da71bfe54b514ea/FLAGcea5216a3 [2021-11-17 08:38:56,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c2ffa7ad/269bd3046d03406f9da71bfe54b514ea [2021-11-17 08:38:56,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 08:38:56,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 08:38:56,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 08:38:56,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 08:38:56,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 08:38:56,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:38:56" (1/1) ... [2021-11-17 08:38:56,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465d4f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:38:56, skipping insertion in model container [2021-11-17 08:38:56,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:38:56" (1/1) ... [2021-11-17 08:38:56,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 08:38:56,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 08:39:02,612 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-17 08:39:02,615 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-17 08:39:02,617 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-17 08:39:02,617 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-17 08:39:02,683 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:39:02,755 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 08:39:03,346 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-17 08:39:03,346 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-17 08:39:03,347 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-17 08:39:03,347 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-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-17 08:39:03,356 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:39:03,538 INFO L208 MainTranslator]: Completed translation [2021-11-17 08:39:03,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03 WrapperNode [2021-11-17 08:39:03,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 08:39:03,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 08:39:03,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 08:39:03,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 08:39:03,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:03,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,189 INFO L137 Inliner]: procedures = 472, calls = 6567, calls flagged for inlining = 277, calls inlined = 258, statements flattened = 16249 [2021-11-17 08:39:04,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 08:39:04,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 08:39:04,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 08:39:04,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 08:39:04,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:04,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:05,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 08:39:05,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 08:39:05,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 08:39:05,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 08:39:05,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (1/1) ... [2021-11-17 08:39:05,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:39:05,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 08:39:05,157 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 08:39:05,168 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 08:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_check_bssid [2021-11-17 08:39:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_check_bssid [2021-11-17 08:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_bb_reg [2021-11-17 08:39:05,201 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_bb_reg [2021-11-17 08:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 08:39:05,201 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 08:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 08:39:05,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 08:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-17 08:39:05,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-17 08:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_deinit_sw_vars [2021-11-17 08:39:05,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_deinit_sw_vars [2021-11-17 08:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-17 08:39:05,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-17 08:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-17 08:39:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-17 08:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 08:39:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 08:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 08:39:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 08:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-17 08:39:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-17 08:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_bw_mode [2021-11-17 08:39:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_bw_mode [2021-11-17 08:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 08:39:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 08:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 08:39:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 08:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 08:39:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 08:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_interrupt_mask [2021-11-17 08:39:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_interrupt_mask [2021-11-17 08:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_rf_serial_read [2021-11-17 08:39:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_rf_serial_read [2021-11-17 08:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 08:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_led_control [2021-11-17 08:39:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_led_control [2021-11-17 08:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_chk_fwcmd_iodone [2021-11-17 08:39:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_chk_fwcmd_iodone [2021-11-17 08:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_hw_reg [2021-11-17 08:39:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_hw_reg [2021-11-17 08:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_nullfunc [2021-11-17 08:39:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_nullfunc [2021-11-17 08:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 08:39:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 08:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-17 08:39:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-17 08:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 08:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-17 08:39:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-17 08:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 08:39:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 08:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-17 08:39:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-17 08:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 08:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 08:39:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 08:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 08:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_beacon_hwreg [2021-11-17 08:39:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_beacon_hwreg [2021-11-17 08:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 08:39:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 08:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_calculate_bit_shift [2021-11-17 08:39:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_calculate_bit_shift [2021-11-17 08:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 08:39:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 08:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 08:39:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 08:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 08:39:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 08:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-17 08:39:05,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-17 08:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-17 08:39:05,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-17 08:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_fw_cmd [2021-11-17 08:39:05,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_fw_cmd [2021-11-17 08:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_tx_polling [2021-11-17 08:39:05,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_tx_polling [2021-11-17 08:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-17 08:39:05,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-17 08:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 08:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 08:39:05,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 08:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 08:39:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 08:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_read_eeprom_info [2021-11-17 08:39:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_read_eeprom_info [2021-11-17 08:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 08:39:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 08:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-17 08:39:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-17 08:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 08:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_set_media_status [2021-11-17 08:39:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_set_media_status [2021-11-17 08:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 08:39:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 08:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 08:39:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 08:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 08:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 08:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:39:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:39:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_set_sysclk [2021-11-17 08:39:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_set_sysclk [2021-11-17 08:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_sw_led_off [2021-11-17 08:39:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_sw_led_off [2021-11-17 08:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_halset_sysclk [2021-11-17 08:39:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_halset_sysclk [2021-11-17 08:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 08:39:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 08:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_hw_init [2021-11-17 08:39:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_hw_init [2021-11-17 08:39:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8192se_gpiobit3_cfg_inputmode [2021-11-17 08:39:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8192se_gpiobit3_cfg_inputmode [2021-11-17 08:39:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-17 08:39:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-17 08:39:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_card_disable [2021-11-17 08:39:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_card_disable [2021-11-17 08:39:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 08:39:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 08:39:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_get_hw_reg [2021-11-17 08:39:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_get_hw_reg [2021-11-17 08:39:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_dm_watchdog [2021-11-17 08:39:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_dm_watchdog [2021-11-17 08:39:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_config_rf [2021-11-17 08:39:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_config_rf [2021-11-17 08:39:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_dm_init_edca_turbo [2021-11-17 08:39:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_dm_init_edca_turbo [2021-11-17 08:39:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 08:39:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 08:39:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 08:39:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 08:39:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-17 08:39:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-17 08:39:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 08:39:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 08:39:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-17 08:39:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-17 08:39:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-17 08:39:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-17 08:39:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_beacon_interval [2021-11-17 08:39:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_beacon_interval [2021-11-17 08:39:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_txpower [2021-11-17 08:39:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_txpower [2021-11-17 08:39:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_suspend [2021-11-17 08:39:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_suspend [2021-11-17 08:39:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_firmware_get_nextstatus [2021-11-17 08:39:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_firmware_get_nextstatus [2021-11-17 08:39:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-17 08:39:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-17 08:39:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_beacon_related_registers [2021-11-17 08:39:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_beacon_related_registers [2021-11-17 08:39:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-17 08:39:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-17 08:39:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 08:39:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 08:39:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 08:39:05,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 08:39:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-17 08:39:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-17 08:39:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_config_bb [2021-11-17 08:39:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_config_bb [2021-11-17 08:39:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_enable_hw_security_config [2021-11-17 08:39:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_enable_hw_security_config [2021-11-17 08:39:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 08:39:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 08:39:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_init_sw_leds [2021-11-17 08:39:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_init_sw_leds [2021-11-17 08:39:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_check_ephy_switchready [2021-11-17 08:39:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_check_ephy_switchready [2021-11-17 08:39:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 08:39:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_qos [2021-11-17 08:39:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_qos [2021-11-17 08:39:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-17 08:39:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-17 08:39:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 08:39:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_rf_onoff_detect [2021-11-17 08:39:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_rf_onoff_detect [2021-11-17 08:39:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_tx_fill_cmddesc [2021-11-17 08:39:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_tx_fill_cmddesc [2021-11-17 08:39:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_set_rfhalt [2021-11-17 08:39:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_set_rfhalt [2021-11-17 08:39:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_cmd_send_packet [2021-11-17 08:39:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_cmd_send_packet [2021-11-17 08:39:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-17 08:39:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-17 08:39:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-17 08:39:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-17 08:39:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_enable_interrupt [2021-11-17 08:39:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_enable_interrupt [2021-11-17 08:39:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 08:39:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_set_sw_chnl_cmdarray [2021-11-17 08:39:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_set_sw_chnl_cmdarray [2021-11-17 08:39:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:39:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:39:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 08:39:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 08:39:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 08:39:05,232 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 08:39:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_init_led [2021-11-17 08:39:05,232 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_init_led [2021-11-17 08:39:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 08:39:05,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 08:39:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___5 [2021-11-17 08:39:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___5 [2021-11-17 08:39:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl92se_driver_exit_7_2 [2021-11-17 08:39:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl92se_driver_exit_7_2 [2021-11-17 08:39:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-17 08:39:05,233 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-17 08:39:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-17 08:39:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-17 08:39:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-17 08:39:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-17 08:39:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-17 08:39:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-17 08:39:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_fw_set_rqpn [2021-11-17 08:39:05,235 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_fw_set_rqpn [2021-11-17 08:39:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-17 08:39:05,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-17 08:39:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 08:39:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-17 08:39:05,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-17 08:39:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 08:39:05,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 08:39:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-17 08:39:05,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-17 08:39:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_query_bb_reg [2021-11-17 08:39:05,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_query_bb_reg [2021-11-17 08:39:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_rf_reg [2021-11-17 08:39:05,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_rf_reg [2021-11-17 08:39:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_scan_operation_backup [2021-11-17 08:39:05,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_scan_operation_backup [2021-11-17 08:39:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-17 08:39:05,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-17 08:39:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 08:39:05,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 08:39:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_disable_interrupt [2021-11-17 08:39:05,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_disable_interrupt [2021-11-17 08:39:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-17 08:39:05,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-17 08:39:05,238 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-17 08:39:05,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-17 08:39:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_hal_rate_tbl [2021-11-17 08:39:05,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_hal_rate_tbl [2021-11-17 08:39:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 08:39:05,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 08:39:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 08:39:05,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 08:39:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_resume [2021-11-17 08:39:05,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_resume [2021-11-17 08:39:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-17 08:39:05,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-17 08:39:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_sw_led_on [2021-11-17 08:39:05,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_sw_led_on [2021-11-17 08:39:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 08:39:05,241 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 08:39:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_channel_access_setting [2021-11-17 08:39:05,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_channel_access_setting [2021-11-17 08:39:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 08:39:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-17 08:39:05,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-17 08:39:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 08:39:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 08:39:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_init_sw_vars [2021-11-17 08:39:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_init_sw_vars [2021-11-17 08:39:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_query_rf_reg [2021-11-17 08:39:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_query_rf_reg [2021-11-17 08:39:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-17 08:39:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-17 08:39:06,686 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 08:39:06,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 08:39:07,027 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 08:39:33,138 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 08:39:36,916 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 08:39:36,952 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 08:39:36,953 INFO L301 CfgBuilder]: Removed 27 assume(true) statements. [2021-11-17 08:39:36,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:39:36 BoogieIcfgContainer [2021-11-17 08:39:36,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 08:39:36,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 08:39:36,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 08:39:36,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 08:39:36,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 08:38:56" (1/3) ... [2021-11-17 08:39:36,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d13ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:39:36, skipping insertion in model container [2021-11-17 08:39:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:39:03" (2/3) ... [2021-11-17 08:39:36,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d13ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:39:36, skipping insertion in model container [2021-11-17 08:39:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:39:36" (3/3) ... [2021-11-17 08:39:36,971 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-17 08:39:36,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 08:39:36,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 08:39:37,044 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 08:39:37,055 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 08:39:37,056 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 08:39:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 5672 states, 3905 states have (on average 1.3743918053777209) internal successors, (5367), 4040 states have internal predecessors, (5367), 1661 states have call successors, (1661), 127 states have call predecessors, (1661), 126 states have return successors, (1651), 1579 states have call predecessors, (1651), 1651 states have call successors, (1651) [2021-11-17 08:39:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-17 08:39:37,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:39:37,200 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:37,201 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 08:39:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:39:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1114423871, now seen corresponding path program 1 times [2021-11-17 08:39:37,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:39:37,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51767717] [2021-11-17 08:39:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:39:37,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:39:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:39:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:39:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:39:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:39:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:39:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:39:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:39:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:39:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:39:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:39:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:39:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:39:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:39:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:39:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:39:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:39:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:38,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:39:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:39:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:39:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:39:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:39:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:39:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:39:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:39:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:39:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:39:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:39:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:39:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 08:39:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:39:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-17 08:39:39,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:39:39,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51767717] [2021-11-17 08:39:39,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51767717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:39:39,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:39:39,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:39:39,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901021538] [2021-11-17 08:39:39,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:39:39,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:39:39,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:39:39,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:39:39,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:39:39,325 INFO L87 Difference]: Start difference. First operand has 5672 states, 3905 states have (on average 1.3743918053777209) internal successors, (5367), 4040 states have internal predecessors, (5367), 1661 states have call successors, (1661), 127 states have call predecessors, (1661), 126 states have return successors, (1651), 1579 states have call predecessors, (1651), 1651 states have call successors, (1651) Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 08:39:41,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:39:43,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:39:48,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:39:58,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:40:05,710 INFO L93 Difference]: Finished difference Result 12562 states and 19564 transitions. [2021-11-17 08:40:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:40:05,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 314 [2021-11-17 08:40:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:40:05,797 INFO L225 Difference]: With dead ends: 12562 [2021-11-17 08:40:05,798 INFO L226 Difference]: Without dead ends: 7253 [2021-11-17 08:40:05,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:40:05,863 INFO L933 BasicCegarLoop]: 6602 mSDtfsCounter, 7475 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 3205 mSolverCounterSat, 3385 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8444 SdHoareTripleChecker+Valid, 14531 SdHoareTripleChecker+Invalid, 6594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3385 IncrementalHoareTripleChecker+Valid, 3205 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:40:05,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8444 Valid, 14531 Invalid, 6594 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3385 Valid, 3205 Invalid, 4 Unknown, 0 Unchecked, 25.3s Time] [2021-11-17 08:40:05,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7253 states. [2021-11-17 08:40:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7253 to 7153. [2021-11-17 08:40:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7153 states, 5123 states have (on average 1.3495998438414991) internal successors, (6914), 5218 states have internal predecessors, (6914), 1823 states have call successors, (1823), 206 states have call predecessors, (1823), 205 states have return successors, (1820), 1770 states have call predecessors, (1820), 1820 states have call successors, (1820) [2021-11-17 08:40:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7153 states to 7153 states and 10557 transitions. [2021-11-17 08:40:06,526 INFO L78 Accepts]: Start accepts. Automaton has 7153 states and 10557 transitions. Word has length 314 [2021-11-17 08:40:06,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:40:06,532 INFO L470 AbstractCegarLoop]: Abstraction has 7153 states and 10557 transitions. [2021-11-17 08:40:06,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 08:40:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7153 states and 10557 transitions. [2021-11-17 08:40:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-17 08:40:06,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:40:06,544 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:06,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 08:40:06,544 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 08:40:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:40:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash -130859928, now seen corresponding path program 1 times [2021-11-17 08:40:06,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:40:06,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000990743] [2021-11-17 08:40:06,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:40:06,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:40:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:40:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:06,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:40:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:40:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:40:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:40:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:40:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:40:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:40:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:40:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:40:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:40:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:40:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:40:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:40:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:40:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:40:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:40:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:40:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:40:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:40:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:40:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:40:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:40:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:40:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:40:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:40:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:40:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 08:40:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-17 08:40:07,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:40:07,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000990743] [2021-11-17 08:40:07,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000990743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:40:07,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:40:07,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:40:07,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428397121] [2021-11-17 08:40:07,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:40:07,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:40:07,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:40:07,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:40:07,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:40:07,789 INFO L87 Difference]: Start difference. First operand 7153 states and 10557 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 08:40:09,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:11,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:16,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:40:29,780 INFO L93 Difference]: Finished difference Result 17810 states and 26392 transitions. [2021-11-17 08:40:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:40:29,781 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 325 [2021-11-17 08:40:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:40:29,881 INFO L225 Difference]: With dead ends: 17810 [2021-11-17 08:40:29,882 INFO L226 Difference]: Without dead ends: 10714 [2021-11-17 08:40:29,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:40:29,924 INFO L933 BasicCegarLoop]: 5819 mSDtfsCounter, 5964 mSDsluCounter, 7163 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 2569 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6784 SdHoareTripleChecker+Valid, 12982 SdHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2569 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-11-17 08:40:29,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6784 Valid, 12982 Invalid, 5298 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2569 Valid, 2726 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2021-11-17 08:40:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2021-11-17 08:40:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 10558. [2021-11-17 08:40:30,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 7570 states have (on average 1.3484808454425363) internal successors, (10208), 7715 states have internal predecessors, (10208), 2680 states have call successors, (2680), 308 states have call predecessors, (2680), 306 states have return successors, (2677), 2597 states have call predecessors, (2677), 2677 states have call successors, (2677) [2021-11-17 08:40:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 15565 transitions. [2021-11-17 08:40:30,530 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 15565 transitions. Word has length 325 [2021-11-17 08:40:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:40:30,532 INFO L470 AbstractCegarLoop]: Abstraction has 10558 states and 15565 transitions. [2021-11-17 08:40:30,533 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 08:40:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 15565 transitions. [2021-11-17 08:40:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-17 08:40:30,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:40:30,546 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 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] [2021-11-17 08:40:30,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 08:40:30,546 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 08:40:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:40:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash 961296808, now seen corresponding path program 1 times [2021-11-17 08:40:30,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:40:30,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448347407] [2021-11-17 08:40:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:40:30,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:40:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:40:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:40:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:40:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:40:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:40:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:40:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:40:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:40:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:40:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:40:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:40:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:40:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:40:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:40:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:40:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:40:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:40:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:40:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:40:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:40:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:40:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:40:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:40:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:40:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:40:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:40:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:40:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 08:40:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:40:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:40:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 08:40:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2021-11-17 08:40:31,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:40:31,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448347407] [2021-11-17 08:40:31,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448347407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:40:31,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:40:31,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:40:31,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356133953] [2021-11-17 08:40:31,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:40:31,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:40:31,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:40:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:40:31,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:40:31,980 INFO L87 Difference]: Start difference. First operand 10558 states and 15565 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 08:40:34,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:36,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:39,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:46,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:40:52,654 INFO L93 Difference]: Finished difference Result 28163 states and 41673 transitions. [2021-11-17 08:40:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:40:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 346 [2021-11-17 08:40:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:40:52,802 INFO L225 Difference]: With dead ends: 28163 [2021-11-17 08:40:52,802 INFO L226 Difference]: Without dead ends: 17662 [2021-11-17 08:40:52,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:40:52,868 INFO L933 BasicCegarLoop]: 5779 mSDtfsCounter, 6017 mSDsluCounter, 7149 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 2582 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6845 SdHoareTripleChecker+Valid, 12928 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2582 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-11-17 08:40:52,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6845 Valid, 12928 Invalid, 5301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2582 Valid, 2715 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2021-11-17 08:40:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17662 states. [2021-11-17 08:40:53,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17662 to 17404. [2021-11-17 08:40:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17404 states, 12489 states have (on average 1.3482264392665546) internal successors, (16838), 12737 states have internal predecessors, (16838), 4407 states have call successors, (4407), 509 states have call predecessors, (4407), 506 states have return successors, (4404), 4262 states have call predecessors, (4404), 4404 states have call successors, (4404) [2021-11-17 08:40:53,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17404 states to 17404 states and 25649 transitions. [2021-11-17 08:40:53,907 INFO L78 Accepts]: Start accepts. Automaton has 17404 states and 25649 transitions. Word has length 346 [2021-11-17 08:40:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:40:53,908 INFO L470 AbstractCegarLoop]: Abstraction has 17404 states and 25649 transitions. [2021-11-17 08:40:53,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 08:40:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 17404 states and 25649 transitions. [2021-11-17 08:40:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-17 08:40:53,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:40:53,924 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 26, 26, 26, 26, 26, 26, 4, 4, 4, 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] [2021-11-17 08:40:53,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 08:40:53,925 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 08:40:53,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:40:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1041085751, now seen corresponding path program 1 times [2021-11-17 08:40:53,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:40:53,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169447865] [2021-11-17 08:40:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:40:53,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:40:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:40:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:40:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:40:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:40:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:40:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:40:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:40:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:40:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:40:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:40:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:40:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:40:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:40:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:40:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:40:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:40:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:40:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:40:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:40:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:40:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:40:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:40:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:40:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:40:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:40:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:40:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:40:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:40:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:40:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:40:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 08:40:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:40:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 08:40:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 08:40:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 08:40:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:40:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-17 08:40:55,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:40:55,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169447865] [2021-11-17 08:40:55,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169447865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:40:55,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:40:55,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:40:55,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058471001] [2021-11-17 08:40:55,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:40:55,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:40:55,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:40:55,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:40:55,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:40:55,118 INFO L87 Difference]: Start difference. First operand 17404 states and 25649 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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 08:40:57,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:40:59,267 WARN L515 Checker$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 08:41:03,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:13,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:41:13,410 INFO L93 Difference]: Finished difference Result 45600 states and 67466 transitions. [2021-11-17 08:41:13,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:41:13,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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 371 [2021-11-17 08:41:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:41:13,653 INFO L225 Difference]: With dead ends: 45600 [2021-11-17 08:41:13,654 INFO L226 Difference]: Without dead ends: 31596 [2021-11-17 08:41:13,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:41:13,742 INFO L933 BasicCegarLoop]: 9967 mSDtfsCounter, 5148 mSDsluCounter, 9603 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 1700 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5974 SdHoareTripleChecker+Valid, 19570 SdHoareTripleChecker+Invalid, 4446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1700 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:41:13,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5974 Valid, 19570 Invalid, 4446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1700 Valid, 2743 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-11-17 08:41:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31596 states. [2021-11-17 08:41:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31596 to 31153. [2021-11-17 08:41:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31153 states, 22378 states have (on average 1.3491375458039145) internal successors, (30191), 22810 states have internal predecessors, (30191), 7868 states have call successors, (7868), 908 states have call predecessors, (7868), 905 states have return successors, (7865), 7623 states have call predecessors, (7865), 7865 states have call successors, (7865) [2021-11-17 08:41:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31153 states to 31153 states and 45924 transitions. [2021-11-17 08:41:15,687 INFO L78 Accepts]: Start accepts. Automaton has 31153 states and 45924 transitions. Word has length 371 [2021-11-17 08:41:15,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:41:15,689 INFO L470 AbstractCegarLoop]: Abstraction has 31153 states and 45924 transitions. [2021-11-17 08:41:15,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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 08:41:15,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31153 states and 45924 transitions. [2021-11-17 08:41:15,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-17 08:41:15,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:41:15,705 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 26, 26, 26, 26, 26, 26, 4, 4, 4, 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] [2021-11-17 08:41:15,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 08:41:15,706 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 08:41:15,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:41:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash -900537141, now seen corresponding path program 1 times [2021-11-17 08:41:15,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:41:15,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363110189] [2021-11-17 08:41:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:41:15,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:41:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:41:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:41:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:41:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:41:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:41:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:41:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:41:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:41:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:41:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:41:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:41:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:41:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:41:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:41:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:41:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:41:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:41:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:41:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:41:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:16,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:41:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:41:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:41:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:41:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:41:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:41:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:41:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:41:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:41:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:41:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:41:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 08:41:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 08:41:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 08:41:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 08:41:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3290 trivial. 0 not checked. [2021-11-17 08:41:17,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:41:17,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363110189] [2021-11-17 08:41:17,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363110189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:41:17,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:41:17,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:41:17,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505312581] [2021-11-17 08:41:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:41:17,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:41:17,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:41:17,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:41:17,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:41:17,320 INFO L87 Difference]: Start difference. First operand 31153 states and 45924 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 08:41:19,423 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 08:41:23,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:41:29,610 INFO L93 Difference]: Finished difference Result 31594 states and 46807 transitions. [2021-11-17 08:41:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:41:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 371 [2021-11-17 08:41:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:41:29,838 INFO L225 Difference]: With dead ends: 31594 [2021-11-17 08:41:29,838 INFO L226 Difference]: Without dead ends: 31539 [2021-11-17 08:41:29,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:41:29,873 INFO L933 BasicCegarLoop]: 5112 mSDtfsCounter, 5199 mSDsluCounter, 7137 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 1673 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 12249 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1673 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-17 08:41:29,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5797 Valid, 12249 Invalid, 3486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1673 Valid, 1811 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2021-11-17 08:41:29,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-11-17 08:41:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 31098. [2021-11-17 08:41:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31098 states, 22353 states have (on average 1.3489911868652977) internal successors, (30154), 22773 states have internal predecessors, (30154), 7841 states have call successors, (7841), 903 states have call predecessors, (7841), 903 states have return successors, (7841), 7610 states have call predecessors, (7841), 7841 states have call successors, (7841) [2021-11-17 08:41:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31098 states to 31098 states and 45836 transitions. [2021-11-17 08:41:31,549 INFO L78 Accepts]: Start accepts. Automaton has 31098 states and 45836 transitions. Word has length 371 [2021-11-17 08:41:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:41:31,552 INFO L470 AbstractCegarLoop]: Abstraction has 31098 states and 45836 transitions. [2021-11-17 08:41:31,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 08:41:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 31098 states and 45836 transitions. [2021-11-17 08:41:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-11-17 08:41:31,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:41:31,586 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 26, 26, 26, 26, 26, 26, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:41:31,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 08:41:31,587 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 08:41:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:41:31,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1839453587, now seen corresponding path program 1 times [2021-11-17 08:41:31,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:41:31,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986740610] [2021-11-17 08:41:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:41:31,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:41:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:41:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:41:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:41:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:41:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:41:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:41:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:41:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:41:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:41:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:41:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:41:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:41:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:41:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:41:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:41:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:41:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:41:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:41:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:41:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:41:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:41:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:41:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:41:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:41:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:41:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:41:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:41:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:41:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:41:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:41:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 08:41:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 08:41:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 08:41:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 08:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 08:41:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3282 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-17 08:41:32,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:41:32,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986740610] [2021-11-17 08:41:32,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986740610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:41:32,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:41:32,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:41:32,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019513259] [2021-11-17 08:41:32,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:41:32,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:41:32,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:41:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:41:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:41:32,926 INFO L87 Difference]: Start difference. First operand 31098 states and 45836 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 08:41:35,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:37,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:41,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:47,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:41:53,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:41:53,298 INFO L93 Difference]: Finished difference Result 73093 states and 108097 transitions. [2021-11-17 08:41:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:41:53,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 390 [2021-11-17 08:41:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:41:53,748 INFO L225 Difference]: With dead ends: 73093 [2021-11-17 08:41:53,748 INFO L226 Difference]: Without dead ends: 45395 [2021-11-17 08:41:53,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:41:53,860 INFO L933 BasicCegarLoop]: 9839 mSDtfsCounter, 5040 mSDsluCounter, 9474 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 1703 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 19313 SdHoareTripleChecker+Invalid, 4469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:41:53,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5854 Valid, 19313 Invalid, 4469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1703 Valid, 2762 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2021-11-17 08:41:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45395 states. [2021-11-17 08:41:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45395 to 44754. [2021-11-17 08:41:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44754 states, 32175 states have (on average 1.3488733488733489) internal successors, (43400), 32783 states have internal predecessors, (43400), 11277 states have call successors, (11277), 1301 states have call predecessors, (11277), 1301 states have return successors, (11277), 10942 states have call predecessors, (11277), 11277 states have call successors, (11277) [2021-11-17 08:41:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44754 states to 44754 states and 65954 transitions. [2021-11-17 08:41:56,029 INFO L78 Accepts]: Start accepts. Automaton has 44754 states and 65954 transitions. Word has length 390 [2021-11-17 08:41:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:41:56,030 INFO L470 AbstractCegarLoop]: Abstraction has 44754 states and 65954 transitions. [2021-11-17 08:41:56,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 08:41:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand 44754 states and 65954 transitions. [2021-11-17 08:41:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-17 08:41:56,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:41:56,115 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 26, 26, 26, 26, 26, 26, 6, 6, 6, 3, 3, 3, 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, 1, 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 08:41:56,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 08:41:56,116 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 08:41:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:41:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash 867740369, now seen corresponding path program 1 times [2021-11-17 08:41:56,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:41:56,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500513120] [2021-11-17 08:41:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:41:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:41:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:41:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:41:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:41:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:41:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:41:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:41:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:41:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:41:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:41:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:41:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:41:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:41:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:41:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:41:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:41:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:41:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:41:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:41:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:41:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:41:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:41:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:41:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:41:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:41:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:41:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:41:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:41:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:41:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:41:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:41:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 08:41:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 08:41:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 08:41:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-11-17 08:41:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 08:41:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 08:41:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:41:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:41:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:41:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 08:41:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:41:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3405 trivial. 0 not checked. [2021-11-17 08:41:57,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:41:57,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500513120] [2021-11-17 08:41:57,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500513120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:41:57,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:41:57,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:41:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14619238] [2021-11-17 08:41:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:41:57,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:41:57,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:41:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:41:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:41:57,506 INFO L87 Difference]: Start difference. First operand 44754 states and 65954 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 08:41:59,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:01,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:05,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:10,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:42:16,444 INFO L93 Difference]: Finished difference Result 107576 states and 159021 transitions. [2021-11-17 08:42:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:42:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 424 [2021-11-17 08:42:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:42:16,758 INFO L225 Difference]: With dead ends: 107576 [2021-11-17 08:42:16,759 INFO L226 Difference]: Without dead ends: 62774 [2021-11-17 08:42:17,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:42:17,035 INFO L933 BasicCegarLoop]: 10045 mSDtfsCounter, 5098 mSDsluCounter, 9634 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 1668 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 19679 SdHoareTripleChecker+Invalid, 4398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1668 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-17 08:42:17,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5921 Valid, 19679 Invalid, 4398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1668 Valid, 2726 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2021-11-17 08:42:17,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62774 states. [2021-11-17 08:42:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62774 to 61890. [2021-11-17 08:42:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61890 states, 44490 states have (on average 1.3493369296471116) internal successors, (60032), 45328 states have internal predecessors, (60032), 15599 states have call successors, (15599), 1800 states have call predecessors, (15599), 1800 states have return successors, (15599), 15139 states have call predecessors, (15599), 15599 states have call successors, (15599) [2021-11-17 08:42:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61890 states to 61890 states and 91230 transitions. [2021-11-17 08:42:19,589 INFO L78 Accepts]: Start accepts. Automaton has 61890 states and 91230 transitions. Word has length 424 [2021-11-17 08:42:19,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:42:19,590 INFO L470 AbstractCegarLoop]: Abstraction has 61890 states and 91230 transitions. [2021-11-17 08:42:19,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 08:42:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 61890 states and 91230 transitions. [2021-11-17 08:42:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-17 08:42:19,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:42:19,699 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 7, 7, 7, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:42:19,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 08:42:19,700 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 08:42:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:42:19,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1064382750, now seen corresponding path program 1 times [2021-11-17 08:42:19,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:42:19,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453780426] [2021-11-17 08:42:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:42:19,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:42:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:42:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:42:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:42:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:42:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:42:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:42:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:42:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:42:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:42:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:42:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:42:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:42:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:42:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:42:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:42:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:42:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:42:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:42:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:42:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:42:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:42:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:42:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:42:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:42:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:42:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:42:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:42:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:42:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:42:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:42:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 08:42:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 08:42:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 08:42:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 08:42:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 08:42:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 08:42:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 08:42:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-17 08:42:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 08:42:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:42:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:42:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-11-17 08:42:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3628 trivial. 0 not checked. [2021-11-17 08:42:21,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:42:21,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453780426] [2021-11-17 08:42:21,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453780426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:42:21,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:42:21,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:42:21,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105480274] [2021-11-17 08:42:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:42:21,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:42:21,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:42:21,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:42:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:42:21,014 INFO L87 Difference]: Start difference. First operand 61890 states and 91230 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-17 08:42:23,111 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 08:42:25,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:29,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:39,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:42:39,958 INFO L93 Difference]: Finished difference Result 142063 states and 209996 transitions. [2021-11-17 08:42:39,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:42:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 449 [2021-11-17 08:42:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:42:40,702 INFO L225 Difference]: With dead ends: 142063 [2021-11-17 08:42:40,702 INFO L226 Difference]: Without dead ends: 80155 [2021-11-17 08:42:40,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:42:40,915 INFO L933 BasicCegarLoop]: 10044 mSDtfsCounter, 5097 mSDsluCounter, 9635 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 1664 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5920 SdHoareTripleChecker+Valid, 19679 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1664 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:42:40,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5920 Valid, 19679 Invalid, 4383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1664 Valid, 2716 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-17 08:42:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80155 states. [2021-11-17 08:42:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80155 to 61890. [2021-11-17 08:42:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61890 states, 44490 states have (on average 1.3493144526859968) internal successors, (60031), 45328 states have internal predecessors, (60031), 15599 states have call successors, (15599), 1800 states have call predecessors, (15599), 1800 states have return successors, (15599), 15139 states have call predecessors, (15599), 15599 states have call successors, (15599) [2021-11-17 08:42:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61890 states to 61890 states and 91229 transitions. [2021-11-17 08:42:44,337 INFO L78 Accepts]: Start accepts. Automaton has 61890 states and 91229 transitions. Word has length 449 [2021-11-17 08:42:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:42:44,339 INFO L470 AbstractCegarLoop]: Abstraction has 61890 states and 91229 transitions. [2021-11-17 08:42:44,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-17 08:42:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 61890 states and 91229 transitions. [2021-11-17 08:42:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-17 08:42:44,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:42:44,426 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 7, 7, 7, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:42:44,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 08:42:44,427 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 08:42:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:42:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1903416412, now seen corresponding path program 1 times [2021-11-17 08:42:44,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:42:44,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894185160] [2021-11-17 08:42:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:42:44,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:42:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:42:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:42:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:42:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:42:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:42:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:42:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:42:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:42:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:42:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:42:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:42:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:42:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:42:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:42:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:42:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:42:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:42:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:42:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:42:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:42:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:42:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:42:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:42:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:42:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:42:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:42:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:42:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:42:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:42:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:42:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 08:42:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 08:42:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 08:42:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 08:42:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 08:42:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 08:42:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 08:42:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-17 08:42:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 08:42:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:42:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:42:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:42:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-11-17 08:42:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:42:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3647 trivial. 0 not checked. [2021-11-17 08:42:45,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:42:45,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894185160] [2021-11-17 08:42:45,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894185160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:42:45,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:42:45,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:42:45,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291474938] [2021-11-17 08:42:45,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:42:45,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:42:45,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:42:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:42:45,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:42:45,735 INFO L87 Difference]: Start difference. First operand 61890 states and 91229 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 08:42:47,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:42:49,939 WARN L515 Checker$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 08:42:54,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:01,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:08,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:43:08,335 INFO L93 Difference]: Finished difference Result 152281 states and 225166 transitions. [2021-11-17 08:43:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:43:08,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 449 [2021-11-17 08:43:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:43:09,166 INFO L225 Difference]: With dead ends: 152281 [2021-11-17 08:43:09,166 INFO L226 Difference]: Without dead ends: 93791 [2021-11-17 08:43:09,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:43:09,359 INFO L933 BasicCegarLoop]: 9994 mSDtfsCounter, 5059 mSDsluCounter, 9593 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 1670 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5882 SdHoareTripleChecker+Valid, 19587 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1670 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-11-17 08:43:09,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5882 Valid, 19587 Invalid, 4423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1670 Valid, 2749 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2021-11-17 08:43:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93791 states. [2021-11-17 08:43:13,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93791 to 92460. [2021-11-17 08:43:13,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92460 states, 66477 states have (on average 1.349263655098756) internal successors, (89695), 67737 states have internal predecessors, (89695), 23294 states have call successors, (23294), 2688 states have call predecessors, (23294), 2688 states have return successors, (23294), 22601 states have call predecessors, (23294), 23294 states have call successors, (23294) [2021-11-17 08:43:13,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92460 states to 92460 states and 136283 transitions. [2021-11-17 08:43:13,880 INFO L78 Accepts]: Start accepts. Automaton has 92460 states and 136283 transitions. Word has length 449 [2021-11-17 08:43:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:43:13,881 INFO L470 AbstractCegarLoop]: Abstraction has 92460 states and 136283 transitions. [2021-11-17 08:43:13,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 08:43:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 92460 states and 136283 transitions. [2021-11-17 08:43:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-11-17 08:43:13,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:43:13,975 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 26, 26, 26, 26, 26, 26, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:13,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 08:43:13,976 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 08:43:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:43:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash -164596395, now seen corresponding path program 1 times [2021-11-17 08:43:13,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:43:13,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502236621] [2021-11-17 08:43:13,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:43:13,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:43:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:43:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:43:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:43:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:43:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:43:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:43:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:43:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:43:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:43:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:43:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:43:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:43:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:43:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:43:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:43:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:43:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:43:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:43:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:43:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:43:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:43:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:43:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:43:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:43:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:43:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:43:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:43:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:43:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:43:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:43:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 08:43:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 08:43:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 08:43:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 08:43:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-17 08:43:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:43:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:43:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-17 08:43:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:43:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:43:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 08:43:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 08:43:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 08:43:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3564 trivial. 0 not checked. [2021-11-17 08:43:15,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:43:15,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502236621] [2021-11-17 08:43:15,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502236621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:43:15,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:43:15,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:43:15,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922246335] [2021-11-17 08:43:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:43:15,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:43:15,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:43:15,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:43:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:43:15,356 INFO L87 Difference]: Start difference. First operand 92460 states and 136283 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 08:43:17,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:19,525 WARN L515 Checker$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 08:43:24,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:43:36,881 INFO L93 Difference]: Finished difference Result 213772 states and 316012 transitions. [2021-11-17 08:43:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:43:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 463 [2021-11-17 08:43:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:43:37,916 INFO L225 Difference]: With dead ends: 213772 [2021-11-17 08:43:37,917 INFO L226 Difference]: Without dead ends: 121320 [2021-11-17 08:43:38,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:43:38,243 INFO L933 BasicCegarLoop]: 9963 mSDtfsCounter, 5034 mSDsluCounter, 9572 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 1673 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 19535 SdHoareTripleChecker+Invalid, 4429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1673 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:43:38,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5849 Valid, 19535 Invalid, 4429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1673 Valid, 2753 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2021-11-17 08:43:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121320 states. [2021-11-17 08:43:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121320 to 119600. [2021-11-17 08:43:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119600 states, 85990 states have (on average 1.349191766484475) internal successors, (116017), 87625 states have internal predecessors, (116017), 30132 states have call successors, (30132), 3477 states have call predecessors, (30132), 3477 states have return successors, (30132), 29232 states have call predecessors, (30132), 30132 states have call successors, (30132) [2021-11-17 08:43:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119600 states to 119600 states and 176281 transitions. [2021-11-17 08:43:44,277 INFO L78 Accepts]: Start accepts. Automaton has 119600 states and 176281 transitions. Word has length 463 [2021-11-17 08:43:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:43:44,278 INFO L470 AbstractCegarLoop]: Abstraction has 119600 states and 176281 transitions. [2021-11-17 08:43:44,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 08:43:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 119600 states and 176281 transitions. [2021-11-17 08:43:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-11-17 08:43:44,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:43:44,390 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 26, 26, 26, 26, 26, 26, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:44,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 08:43:44,390 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 08:43:44,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:43:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash -558963181, now seen corresponding path program 1 times [2021-11-17 08:43:44,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:43:44,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829841777] [2021-11-17 08:43:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:43:44,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:43:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:43:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:43:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:43:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:43:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:43:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:43:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:43:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:43:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:43:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:43:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:43:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:43:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:43:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:43:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:43:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:43:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:43:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:43:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 08:43:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 08:43:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:43:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:43:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:43:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:43:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:43:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 08:43:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 08:43:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 08:43:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:43:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 08:43:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 08:43:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 08:43:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 08:43:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 08:43:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-17 08:43:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:43:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:43:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-17 08:43:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:43:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:43:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:43:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 08:43:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 08:43:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 08:43:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:43:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3587 trivial. 0 not checked. [2021-11-17 08:43:46,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:43:46,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829841777] [2021-11-17 08:43:46,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829841777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:43:46,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:43:46,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:43:46,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015020619] [2021-11-17 08:43:46,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:43:46,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:43:46,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:43:46,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:43:46,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:43:46,391 INFO L87 Difference]: Start difference. First operand 119600 states and 176281 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 08:43:48,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:52,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:43:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:43:59,530 INFO L93 Difference]: Finished difference Result 121351 states and 179652 transitions. [2021-11-17 08:43:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:43:59,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 463 [2021-11-17 08:43:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:43:59,549 INFO L225 Difference]: With dead ends: 121351 [2021-11-17 08:43:59,550 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 08:43:59,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:43:59,839 INFO L933 BasicCegarLoop]: 5089 mSDtfsCounter, 5133 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 1656 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5723 SdHoareTripleChecker+Valid, 12212 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1656 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:43:59,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5723 Valid, 12212 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1656 Valid, 1794 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-11-17 08:43:59,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 08:43:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 08:43:59,840 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 08:43:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 08:43:59,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 463 [2021-11-17 08:43:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:43:59,860 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 08:43:59,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 08:43:59,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 08:43:59,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 08:43:59,862 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-17 08:43:59,862 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-17 08:43:59,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 08:43:59,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.