./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:07:14,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:07:14,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:07:14,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:07:14,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:07:14,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:07:14,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:07:14,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:07:14,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:07:14,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:07:14,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:07:14,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:07:14,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:07:14,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:07:14,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:07:14,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:07:14,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:07:14,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:07:14,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:07:14,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:07:14,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:07:14,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:07:14,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:07:14,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:07:14,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:07:14,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:07:14,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:07:14,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:07:14,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:07:14,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:07:14,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:07:14,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:07:14,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:07:14,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:07:14,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:07:14,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:07:14,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:07:14,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:07:14,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:07:14,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:07:14,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:07:14,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:07:14,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:07:14,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:07:14,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:07:14,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:07:14,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:07:14,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:07:14,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:07:14,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:07:14,609 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:07:14,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:07:14,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:07:14,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:07:14,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:07:14,611 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:07:14,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:07:14,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:07:14,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:07:14,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 [2021-12-22 15:07:14,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:07:14,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:07:14,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:07:14,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:07:14,854 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:07:14,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-12-22 15:07:14,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb55169c/7078bc9676a54593b1ca0c5fa44a3197/FLAGfd3da0c98 [2021-12-22 15:07:15,648 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:07:15,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-12-22 15:07:15,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb55169c/7078bc9676a54593b1ca0c5fa44a3197/FLAGfd3da0c98 [2021-12-22 15:07:15,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb55169c/7078bc9676a54593b1ca0c5fa44a3197 [2021-12-22 15:07:15,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:07:15,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:07:15,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:15,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:07:15,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:07:15,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4490b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15, skipping insertion in model container [2021-12-22 15:07:15,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:07:15,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:07:16,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2021-12-22 15:07:17,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:17,121 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:07:17,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2021-12-22 15:07:17,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:17,531 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:07:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17 WrapperNode [2021-12-22 15:07:17,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:17,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:17,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:07:17,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:07:17,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,749 INFO L137 Inliner]: procedures = 223, calls = 2434, calls flagged for inlining = 70, calls inlined = 65, statements flattened = 5052 [2021-12-22 15:07:17,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:17,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:07:17,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:07:17,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:07:17,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:17,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:18,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:07:18,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:07:18,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:07:18,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:07:18,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (1/1) ... [2021-12-22 15:07:18,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:07:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:07:18,107 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) [2021-12-22 15:07:18,123 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 [2021-12-22 15:07:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 15:07:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 15:07:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2021-12-22 15:07:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2021-12-22 15:07:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 15:07:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 15:07:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:07:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:07:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:07:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:07:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:07:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:07:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2021-12-22 15:07:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2021-12-22 15:07:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2021-12-22 15:07:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2021-12-22 15:07:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:07:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:07:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2021-12-22 15:07:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2021-12-22 15:07:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2021-12-22 15:07:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2021-12-22 15:07:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2021-12-22 15:07:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2021-12-22 15:07:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2021-12-22 15:07:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2021-12-22 15:07:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2021-12-22 15:07:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2021-12-22 15:07:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:07:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:07:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:07:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:07:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2021-12-22 15:07:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2021-12-22 15:07:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:07:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:07:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2021-12-22 15:07:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2021-12-22 15:07:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:07:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:07:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2021-12-22 15:07:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2021-12-22 15:07:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2021-12-22 15:07:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2021-12-22 15:07:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2021-12-22 15:07:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2021-12-22 15:07:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_remove [2021-12-22 15:07:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_remove [2021-12-22 15:07:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-22 15:07:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-22 15:07:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:07:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:07:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_probe [2021-12-22 15:07:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_probe [2021-12-22 15:07:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:07:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-12-22 15:07:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-12-22 15:07:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2021-12-22 15:07:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2021-12-22 15:07:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2021-12-22 15:07:18,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2021-12-22 15:07:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:07:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tx_empty [2021-12-22 15:07:18,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tx_empty [2021-12-22 15:07:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:07:18,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:07:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-22 15:07:18,156 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-22 15:07:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:07:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2021-12-22 15:07:18,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2021-12-22 15:07:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:07:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2021-12-22 15:07:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2021-12-22 15:07:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-22 15:07:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-22 15:07:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2021-12-22 15:07:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2021-12-22 15:07:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:07:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:07:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:07:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:07:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 15:07:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 15:07:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:07:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:07:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-22 15:07:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-22 15:07:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:07:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:07:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 15:07:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 15:07:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-22 15:07:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-22 15:07:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:07:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:07:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:07:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2021-12-22 15:07:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2021-12-22 15:07:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 15:07:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 15:07:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 15:07:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 15:07:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2021-12-22 15:07:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2021-12-22 15:07:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2021-12-22 15:07:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2021-12-22 15:07:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:07:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:07:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:07:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2021-12-22 15:07:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2021-12-22 15:07:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2021-12-22 15:07:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2021-12-22 15:07:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:07:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:07:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2021-12-22 15:07:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2021-12-22 15:07:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:07:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:07:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:07:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:07:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:07:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2021-12-22 15:07:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2021-12-22 15:07:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:07:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:07:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:07:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:07:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2021-12-22 15:07:18,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2021-12-22 15:07:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-22 15:07:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-22 15:07:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2021-12-22 15:07:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2021-12-22 15:07:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2021-12-22 15:07:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2021-12-22 15:07:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 15:07:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 15:07:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-22 15:07:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-22 15:07:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 15:07:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 15:07:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2021-12-22 15:07:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2021-12-22 15:07:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:07:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2021-12-22 15:07:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2021-12-22 15:07:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2021-12-22 15:07:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2021-12-22 15:07:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:07:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:07:18,802 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:07:18,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:07:19,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:07:22,398 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:07:22,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:07:22,416 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 15:07:22,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:22 BoogieIcfgContainer [2021-12-22 15:07:22,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:07:22,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:07:22,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:07:22,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:07:22,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:07:15" (1/3) ... [2021-12-22 15:07:22,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db156f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:22, skipping insertion in model container [2021-12-22 15:07:22,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:17" (2/3) ... [2021-12-22 15:07:22,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db156f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:22, skipping insertion in model container [2021-12-22 15:07:22,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:22" (3/3) ... [2021-12-22 15:07:22,426 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-12-22 15:07:22,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:07:22,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:07:22,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:07:22,496 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 [2021-12-22 15:07:22,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:07:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 1516 states, 1071 states have (on average 1.4089635854341738) internal successors, (1509), 1090 states have internal predecessors, (1509), 376 states have call successors, (376), 68 states have call predecessors, (376), 67 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2021-12-22 15:07:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-22 15:07:22,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:22,577 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:22,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1454246335, now seen corresponding path program 1 times [2021-12-22 15:07:22,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:22,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172600556] [2021-12-22 15:07:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:22,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:23,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172600556] [2021-12-22 15:07:23,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172600556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:23,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:23,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:07:23,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981685720] [2021-12-22 15:07:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:23,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:07:23,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:07:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:07:23,969 INFO L87 Difference]: Start difference. First operand has 1516 states, 1071 states have (on average 1.4089635854341738) internal successors, (1509), 1090 states have internal predecessors, (1509), 376 states have call successors, (376), 68 states have call predecessors, (376), 67 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:26,930 INFO L93 Difference]: Finished difference Result 3099 states and 4792 transitions. [2021-12-22 15:07:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:07:26,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 265 [2021-12-22 15:07:26,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:26,964 INFO L225 Difference]: With dead ends: 3099 [2021-12-22 15:07:26,965 INFO L226 Difference]: Without dead ends: 1577 [2021-12-22 15:07:26,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:26,982 INFO L933 BasicCegarLoop]: 2115 mSDtfsCounter, 799 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 1292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1292 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:26,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 3322 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1292 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-22 15:07:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2021-12-22 15:07:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1505. [2021-12-22 15:07:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1066 states have (on average 1.403377110694184) internal successors, (1496), 1079 states have internal predecessors, (1496), 372 states have call successors, (372), 67 states have call predecessors, (372), 66 states have return successors, (366), 366 states have call predecessors, (366), 366 states have call successors, (366) [2021-12-22 15:07:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2234 transitions. [2021-12-22 15:07:27,149 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2234 transitions. Word has length 265 [2021-12-22 15:07:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:27,150 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 2234 transitions. [2021-12-22 15:07:27,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2234 transitions. [2021-12-22 15:07:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-22 15:07:27,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:27,157 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:27,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:07:27,157 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1060099509, now seen corresponding path program 1 times [2021-12-22 15:07:27,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:27,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653681944] [2021-12-22 15:07:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:27,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:27,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:27,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653681944] [2021-12-22 15:07:27,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653681944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:27,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:27,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:27,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633079040] [2021-12-22 15:07:27,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:27,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:27,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:27,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:27,959 INFO L87 Difference]: Start difference. First operand 1505 states and 2234 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-22 15:07:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:33,140 INFO L93 Difference]: Finished difference Result 4517 states and 6875 transitions. [2021-12-22 15:07:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:07:33,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 265 [2021-12-22 15:07:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:33,161 INFO L225 Difference]: With dead ends: 4517 [2021-12-22 15:07:33,161 INFO L226 Difference]: Without dead ends: 3060 [2021-12-22 15:07:33,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:07:33,170 INFO L933 BasicCegarLoop]: 2390 mSDtfsCounter, 2791 mSDsluCounter, 4317 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 1790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3067 SdHoareTripleChecker+Valid, 6707 SdHoareTripleChecker+Invalid, 3831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:33,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3067 Valid, 6707 Invalid, 3831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:07:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2021-12-22 15:07:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2915. [2021-12-22 15:07:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2078 states have (on average 1.410009624639076) internal successors, (2930), 2099 states have internal predecessors, (2930), 707 states have call successors, (707), 130 states have call predecessors, (707), 129 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2021-12-22 15:07:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4338 transitions. [2021-12-22 15:07:33,289 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4338 transitions. Word has length 265 [2021-12-22 15:07:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:33,290 INFO L470 AbstractCegarLoop]: Abstraction has 2915 states and 4338 transitions. [2021-12-22 15:07:33,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-22 15:07:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4338 transitions. [2021-12-22 15:07:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-22 15:07:33,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:33,295 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:33,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:07:33,295 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:33,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:33,296 INFO L85 PathProgramCache]: Analyzing trace with hash -320861640, now seen corresponding path program 1 times [2021-12-22 15:07:33,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:33,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044565652] [2021-12-22 15:07:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:33,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:34,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:34,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044565652] [2021-12-22 15:07:34,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044565652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:34,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:34,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:34,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480678993] [2021-12-22 15:07:34,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:34,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:34,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:34,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:34,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:34,067 INFO L87 Difference]: Start difference. First operand 2915 states and 4338 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:38,731 INFO L93 Difference]: Finished difference Result 3058 states and 4704 transitions. [2021-12-22 15:07:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:07:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 267 [2021-12-22 15:07:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:38,752 INFO L225 Difference]: With dead ends: 3058 [2021-12-22 15:07:38,752 INFO L226 Difference]: Without dead ends: 3055 [2021-12-22 15:07:38,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:07:38,755 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 2404 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 1023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:38,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 5363 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-22 15:07:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-12-22 15:07:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2914. [2021-12-22 15:07:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2078 states have (on average 1.4095283926852744) internal successors, (2929), 2098 states have internal predecessors, (2929), 706 states have call successors, (706), 130 states have call predecessors, (706), 129 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2021-12-22 15:07:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4336 transitions. [2021-12-22 15:07:38,885 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4336 transitions. Word has length 267 [2021-12-22 15:07:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:38,886 INFO L470 AbstractCegarLoop]: Abstraction has 2914 states and 4336 transitions. [2021-12-22 15:07:38,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4336 transitions. [2021-12-22 15:07:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-22 15:07:38,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:38,891 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:38,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:07:38,891 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:38,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:38,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1357326777, now seen corresponding path program 1 times [2021-12-22 15:07:38,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:38,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111991180] [2021-12-22 15:07:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:38,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:39,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:39,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111991180] [2021-12-22 15:07:39,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111991180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:39,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:39,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:39,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165510846] [2021-12-22 15:07:39,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:39,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:39,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:39,609 INFO L87 Difference]: Start difference. First operand 2914 states and 4336 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:42,077 INFO L93 Difference]: Finished difference Result 3057 states and 4702 transitions. [2021-12-22 15:07:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:07:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 268 [2021-12-22 15:07:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:42,098 INFO L225 Difference]: With dead ends: 3057 [2021-12-22 15:07:42,098 INFO L226 Difference]: Without dead ends: 3054 [2021-12-22 15:07:42,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:07:42,103 INFO L933 BasicCegarLoop]: 2094 mSDtfsCounter, 2716 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 1481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1481 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:42,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 3289 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1481 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 15:07:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2021-12-22 15:07:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2913. [2021-12-22 15:07:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2078 states have (on average 1.4090471607314725) internal successors, (2928), 2097 states have internal predecessors, (2928), 705 states have call successors, (705), 130 states have call predecessors, (705), 129 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2021-12-22 15:07:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4334 transitions. [2021-12-22 15:07:42,207 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4334 transitions. Word has length 268 [2021-12-22 15:07:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:42,210 INFO L470 AbstractCegarLoop]: Abstraction has 2913 states and 4334 transitions. [2021-12-22 15:07:42,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4334 transitions. [2021-12-22 15:07:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-22 15:07:42,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:42,214 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:42,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:07:42,216 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:42,217 INFO L85 PathProgramCache]: Analyzing trace with hash 871997211, now seen corresponding path program 1 times [2021-12-22 15:07:42,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:42,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316893686] [2021-12-22 15:07:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:42,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:42,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:42,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316893686] [2021-12-22 15:07:42,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316893686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:42,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:42,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:42,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084493982] [2021-12-22 15:07:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:42,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:42,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:42,911 INFO L87 Difference]: Start difference. First operand 2913 states and 4334 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:45,325 INFO L93 Difference]: Finished difference Result 3056 states and 4700 transitions. [2021-12-22 15:07:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:07:45,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 269 [2021-12-22 15:07:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:45,343 INFO L225 Difference]: With dead ends: 3056 [2021-12-22 15:07:45,343 INFO L226 Difference]: Without dead ends: 3053 [2021-12-22 15:07:45,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:07:45,346 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 2712 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 1475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1475 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:45,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2953 Valid, 3294 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1475 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 15:07:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2021-12-22 15:07:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2912. [2021-12-22 15:07:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2078 states have (on average 1.4085659287776708) internal successors, (2927), 2096 states have internal predecessors, (2927), 704 states have call successors, (704), 130 states have call predecessors, (704), 129 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2021-12-22 15:07:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4332 transitions. [2021-12-22 15:07:45,466 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4332 transitions. Word has length 269 [2021-12-22 15:07:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:45,466 INFO L470 AbstractCegarLoop]: Abstraction has 2912 states and 4332 transitions. [2021-12-22 15:07:45,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4332 transitions. [2021-12-22 15:07:45,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-22 15:07:45,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:45,471 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:45,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:07:45,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1261568970, now seen corresponding path program 1 times [2021-12-22 15:07:45,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:45,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490138584] [2021-12-22 15:07:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:45,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:46,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490138584] [2021-12-22 15:07:46,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490138584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:46,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:46,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:46,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638954316] [2021-12-22 15:07:46,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:46,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:46,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:46,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:46,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:46,156 INFO L87 Difference]: Start difference. First operand 2912 states and 4332 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:51,260 INFO L93 Difference]: Finished difference Result 8873 states and 13563 transitions. [2021-12-22 15:07:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:07:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 270 [2021-12-22 15:07:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:51,300 INFO L225 Difference]: With dead ends: 8873 [2021-12-22 15:07:51,300 INFO L226 Difference]: Without dead ends: 6002 [2021-12-22 15:07:51,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:07:51,319 INFO L933 BasicCegarLoop]: 2461 mSDtfsCounter, 3140 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 1878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1878 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:51,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3410 Valid, 6746 Invalid, 3945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1878 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:07:51,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-12-22 15:07:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 5726. [2021-12-22 15:07:51,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 4096 states have (on average 1.412109375) internal successors, (5784), 4136 states have internal predecessors, (5784), 1374 states have call successors, (1374), 253 states have call predecessors, (1374), 255 states have return successors, (1401), 1368 states have call predecessors, (1401), 1369 states have call successors, (1401) [2021-12-22 15:07:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 8559 transitions. [2021-12-22 15:07:51,649 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 8559 transitions. Word has length 270 [2021-12-22 15:07:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:51,650 INFO L470 AbstractCegarLoop]: Abstraction has 5726 states and 8559 transitions. [2021-12-22 15:07:51,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-22 15:07:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 8559 transitions. [2021-12-22 15:07:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-22 15:07:51,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:51,660 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:51,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:07:51,661 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash -309930588, now seen corresponding path program 1 times [2021-12-22 15:07:51,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:51,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683813401] [2021-12-22 15:07:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:51,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:07:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:07:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-22 15:07:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 15:07:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-22 15:07:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 15:07:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:07:52,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:52,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683813401] [2021-12-22 15:07:52,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683813401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:52,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:52,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:07:52,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855784674] [2021-12-22 15:07:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:52,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:07:52,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:07:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:07:52,346 INFO L87 Difference]: Start difference. First operand 5726 states and 8559 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-22 15:07:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:59,645 INFO L93 Difference]: Finished difference Result 16591 states and 25018 transitions. [2021-12-22 15:07:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 15:07:59,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 306 [2021-12-22 15:07:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:59,707 INFO L225 Difference]: With dead ends: 16591 [2021-12-22 15:07:59,708 INFO L226 Difference]: Without dead ends: 10913 [2021-12-22 15:07:59,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-22 15:07:59,742 INFO L933 BasicCegarLoop]: 2122 mSDtfsCounter, 4366 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 3150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 7549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3150 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:59,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 5363 Invalid, 7549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3150 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-22 15:07:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2021-12-22 15:08:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 10352. [2021-12-22 15:08:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10352 states, 7428 states have (on average 1.4006462035541196) internal successors, (10404), 7510 states have internal predecessors, (10404), 2416 states have call successors, (2416), 497 states have call predecessors, (2416), 507 states have return successors, (2469), 2408 states have call predecessors, (2469), 2411 states have call successors, (2469) [2021-12-22 15:08:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10352 states to 10352 states and 15289 transitions. [2021-12-22 15:08:00,181 INFO L78 Accepts]: Start accepts. Automaton has 10352 states and 15289 transitions. Word has length 306 [2021-12-22 15:08:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:08:00,182 INFO L470 AbstractCegarLoop]: Abstraction has 10352 states and 15289 transitions. [2021-12-22 15:08:00,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-22 15:08:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10352 states and 15289 transitions. [2021-12-22 15:08:00,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-22 15:08:00,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:08:00,190 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:08:00,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:08:00,191 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:08:00,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:08:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1685142080, now seen corresponding path program 1 times [2021-12-22 15:08:00,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:08:00,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304732357] [2021-12-22 15:08:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:08:00,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:08:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:08:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:08:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:08:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:08:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:08:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:08:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:08:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:08:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:08:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:08:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:08:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:08:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:08:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:08:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:08:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:08:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:08:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:08:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:08:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-22 15:08:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-22 15:08:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-22 15:08:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-22 15:08:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-22 15:08:00,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:08:00,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304732357] [2021-12-22 15:08:00,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304732357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:08:00,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:08:00,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:08:00,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082468936] [2021-12-22 15:08:00,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:08:00,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:08:00,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:08:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:08:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:08:00,837 INFO L87 Difference]: Start difference. First operand 10352 states and 15289 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)