./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 ff03de63 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-ff03de6 [2021-12-21 16:40:37,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:40:37,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:40:37,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:40:37,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:40:37,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:40:37,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:40:37,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:40:37,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:40:37,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:40:37,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:40:37,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:40:37,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:40:37,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:40:37,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:40:37,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:40:37,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:40:37,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:40:37,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:40:37,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:40:37,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:40:37,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:40:37,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:40:37,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:40:37,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:40:37,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:40:37,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:40:37,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:40:37,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:40:37,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:40:37,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:40:37,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:40:37,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:40:37,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:40:37,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:40:37,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:40:37,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:40:37,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:40:37,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:40:37,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:40:37,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:40:37,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:40:37,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:40:37,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:40:37,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:40:37,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:40:37,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:40:37,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:40:37,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:40:37,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:40:37,774 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:40:37,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:40:37,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:40:37,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:40:37,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:40:37,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:40:37,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:40:37,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:40:37,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:40:37,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:40:37,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:40:37,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:40:37,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:40:37,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:37,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:40:37,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:40:37,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:40:37,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:40:37,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:40:37,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:40:37,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:40:37,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:40:37,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:40:37,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 [2021-12-21 16:40:37,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:40:37,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:40:37,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:40:37,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:40:38,003 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:40:38,004 INFO L432 ainManager$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 [2021-12-21 16:40:38,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ac646542/be3693a8432b46cc9c71049207646f20/FLAG65043816e [2021-12-21 16:40:38,672 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:40:38,673 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 [2021-12-21 16:40:38,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ac646542/be3693a8432b46cc9c71049207646f20/FLAG65043816e [2021-12-21 16:40:38,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ac646542/be3693a8432b46cc9c71049207646f20 [2021-12-21 16:40:38,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:40:38,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:40:38,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:38,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:40:38,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:40:38,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:38" (1/1) ... [2021-12-21 16:40:38,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345cefa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:38, skipping insertion in model container [2021-12-21 16:40:38,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:38" (1/1) ... [2021-12-21 16:40:38,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:40:38,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:40:40,032 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] [2021-12-21 16:40:40,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:40,150 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:40:40,398 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] [2021-12-21 16:40:40,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:40,474 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:40:40,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40 WrapperNode [2021-12-21 16:40:40,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:40,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:40,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:40:40,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:40:40,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,724 INFO L137 Inliner]: procedures = 223, calls = 2434, calls flagged for inlining = 70, calls inlined = 65, statements flattened = 5052 [2021-12-21 16:40:40,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:40,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:40:40,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:40:40,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:40:40,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:40,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:40:41,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:40:41,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:40:41,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:40:41,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (1/1) ... [2021-12-21 16:40:41,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:41,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:40:41,033 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) [2021-12-21 16:40:41,055 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 [2021-12-21 16:40:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-21 16:40:41,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-21 16:40:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2021-12-21 16:40:41,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2021-12-21 16:40:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 16:40:41,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 16:40:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:40:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:40:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:40:41,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:40:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:40:41,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:40:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2021-12-21 16:40:41,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2021-12-21 16:40:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2021-12-21 16:40:41,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2021-12-21 16:40:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:40:41,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:40:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2021-12-21 16:40:41,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2021-12-21 16:40:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2021-12-21 16:40:41,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2021-12-21 16:40:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2021-12-21 16:40:41,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2021-12-21 16:40:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2021-12-21 16:40:41,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2021-12-21 16:40:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2021-12-21 16:40:41,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2021-12-21 16:40:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:40:41,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:40:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:40:41,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:40:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2021-12-21 16:40:41,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2021-12-21 16:40:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:40:41,081 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:40:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2021-12-21 16:40:41,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2021-12-21 16:40:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:40:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:40:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2021-12-21 16:40:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2021-12-21 16:40:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2021-12-21 16:40:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2021-12-21 16:40:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2021-12-21 16:40:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2021-12-21 16:40:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_remove [2021-12-21 16:40:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_remove [2021-12-21 16:40:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-21 16:40:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-21 16:40:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:40:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:40:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_probe [2021-12-21 16:40:41,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_probe [2021-12-21 16:40:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:40:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-12-21 16:40:41,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-12-21 16:40:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2021-12-21 16:40:41,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2021-12-21 16:40:41,086 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2021-12-21 16:40:41,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2021-12-21 16:40:41,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:40:41,086 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tx_empty [2021-12-21 16:40:41,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tx_empty [2021-12-21 16:40:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:40:41,087 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:40:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-21 16:40:41,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-21 16:40:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:40:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2021-12-21 16:40:41,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2021-12-21 16:40:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:40:41,088 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2021-12-21 16:40:41,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2021-12-21 16:40:41,088 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-21 16:40:41,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-21 16:40:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2021-12-21 16:40:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2021-12-21 16:40:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:40:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:40:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:40:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:40:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 16:40:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 16:40:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:40:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:40:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-21 16:40:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-21 16:40:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:40:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:40:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-21 16:40:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-21 16:40:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-21 16:40:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-21 16:40:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:40:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:40:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:40:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2021-12-21 16:40:41,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2021-12-21 16:40:41,093 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:40:41,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:40:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:40:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:40:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2021-12-21 16:40:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2021-12-21 16:40:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2021-12-21 16:40:41,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2021-12-21 16:40:41,094 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:40:41,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:40:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:40:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2021-12-21 16:40:41,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2021-12-21 16:40:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2021-12-21 16:40:41,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2021-12-21 16:40:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:40:41,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:40:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2021-12-21 16:40:41,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2021-12-21 16:40:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:40:41,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:40:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:40:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:40:41,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:40:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2021-12-21 16:40:41,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2021-12-21 16:40:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:40:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:40:41,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:40:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:40:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2021-12-21 16:40:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2021-12-21 16:40:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-21 16:40:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-21 16:40:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2021-12-21 16:40:41,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2021-12-21 16:40:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2021-12-21 16:40:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2021-12-21 16:40:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:40:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:40:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-21 16:40:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-21 16:40:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:40:41,109 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:40:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2021-12-21 16:40:41,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2021-12-21 16:40:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:40:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2021-12-21 16:40:41,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2021-12-21 16:40:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2021-12-21 16:40:41,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2021-12-21 16:40:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:40:41,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:40:41,760 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:40:41,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:40:42,385 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:40:45,185 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:40:45,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:40:45,207 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 16:40:45,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:45 BoogieIcfgContainer [2021-12-21 16:40:45,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:40:45,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:40:45,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:40:45,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:40:45,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:40:38" (1/3) ... [2021-12-21 16:40:45,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b63f9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:45, skipping insertion in model container [2021-12-21 16:40:45,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:40" (2/3) ... [2021-12-21 16:40:45,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b63f9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:45, skipping insertion in model container [2021-12-21 16:40:45,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:45" (3/3) ... [2021-12-21 16:40:45,218 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 [2021-12-21 16:40:45,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:40:45,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:40:45,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:40:45,267 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 [2021-12-21 16:40:45,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:40:45,302 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) [2021-12-21 16:40:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-21 16:40:45,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:40:45,315 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] [2021-12-21 16:40:45,315 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:40:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:40:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1454246335, now seen corresponding path program 1 times [2021-12-21 16:40:45,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:40:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916303765] [2021-12-21 16:40:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:40:45,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:40:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:40:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:40:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:40:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:40:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:40:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:40:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:40:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:40:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:40:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:40:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:40:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:40:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:40:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:40:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:40:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:40:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:40:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:40:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:40:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:40:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:40:46,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:40:46,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916303765] [2021-12-21 16:40:46,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916303765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:40:46,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:40:46,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:40:46,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261505291] [2021-12-21 16:40:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:40:46,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:40:46,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:40:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:40:46,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:40:46,484 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) [2021-12-21 16:40:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:40:49,360 INFO L93 Difference]: Finished difference Result 3099 states and 4792 transitions. [2021-12-21 16:40:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:40:49,364 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 [2021-12-21 16:40:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:40:49,385 INFO L225 Difference]: With dead ends: 3099 [2021-12-21 16:40:49,385 INFO L226 Difference]: Without dead ends: 1577 [2021-12-21 16:40:49,397 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 [2021-12-21 16:40:49,400 INFO L933 BasicCegarLoop]: 2121 mSDtfsCounter, 799 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 1292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1292 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:40:49,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 3333 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1292 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-21 16:40:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2021-12-21 16:40:49,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1505. [2021-12-21 16:40:49,513 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) [2021-12-21 16:40:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2234 transitions. [2021-12-21 16:40:49,524 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2234 transitions. Word has length 265 [2021-12-21 16:40:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:40:49,525 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 2234 transitions. [2021-12-21 16:40:49,525 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) [2021-12-21 16:40:49,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2234 transitions. [2021-12-21 16:40:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-21 16:40:49,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:40:49,530 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] [2021-12-21 16:40:49,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:40:49,531 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:40:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:40:49,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1060099509, now seen corresponding path program 1 times [2021-12-21 16:40:49,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:40:49,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902218691] [2021-12-21 16:40:49,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:40:49,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:40:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:40:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:40:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:40:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:40:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:40:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:40:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:40:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:40:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:40:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:40:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:40:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:40:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:40:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:40:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:40:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:40:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:40:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:40:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:40:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:40:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:40:50,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:40:50,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902218691] [2021-12-21 16:40:50,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902218691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:40:50,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:40:50,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:40:50,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99082143] [2021-12-21 16:40:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:40:50,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:40:50,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:40:50,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:40:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:40:50,246 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) [2021-12-21 16:40:55,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:40:55,613 INFO L93 Difference]: Finished difference Result 4517 states and 6875 transitions. [2021-12-21 16:40:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:40:55,614 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 [2021-12-21 16:40:55,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:40:55,641 INFO L225 Difference]: With dead ends: 4517 [2021-12-21 16:40:55,641 INFO L226 Difference]: Without dead ends: 3060 [2021-12-21 16:40:55,649 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 [2021-12-21 16:40:55,655 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 2791 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 1790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 6711 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:40:55,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3066 Valid, 6711 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-21 16:40:55,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2021-12-21 16:40:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2915. [2021-12-21 16:40:55,769 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) [2021-12-21 16:40:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4338 transitions. [2021-12-21 16:40:55,786 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4338 transitions. Word has length 265 [2021-12-21 16:40:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:40:55,788 INFO L470 AbstractCegarLoop]: Abstraction has 2915 states and 4338 transitions. [2021-12-21 16:40:55,789 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) [2021-12-21 16:40:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4338 transitions. [2021-12-21 16:40:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-21 16:40:55,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:40:55,796 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] [2021-12-21 16:40:55,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:40:55,796 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:40:55,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:40:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -320861640, now seen corresponding path program 1 times [2021-12-21 16:40:55,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:40:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223149494] [2021-12-21 16:40:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:40:55,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:40:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:40:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:40:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:40:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:40:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:40:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:40:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:40:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:40:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:40:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:40:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:40:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:40:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:40:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:40:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:40:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:40:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:40:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:40:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:40:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:40:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:40:56,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:40:56,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223149494] [2021-12-21 16:40:56,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223149494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:40:56,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:40:56,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:40:56,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571695514] [2021-12-21 16:40:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:40:56,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:40:56,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:40:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:40:56,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:40:56,544 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) [2021-12-21 16:41:00,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:00,897 INFO L93 Difference]: Finished difference Result 3058 states and 4704 transitions. [2021-12-21 16:41:00,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:41:00,898 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 [2021-12-21 16:41:00,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:00,915 INFO L225 Difference]: With dead ends: 3058 [2021-12-21 16:41:00,916 INFO L226 Difference]: Without dead ends: 3055 [2021-12-21 16:41:00,918 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 [2021-12-21 16:41:00,918 INFO L933 BasicCegarLoop]: 2101 mSDtfsCounter, 2404 mSDsluCounter, 3278 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 1023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:00,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 5379 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 16:41:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-12-21 16:41:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2914. [2021-12-21 16:41:01,045 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) [2021-12-21 16:41:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4336 transitions. [2021-12-21 16:41:01,057 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4336 transitions. Word has length 267 [2021-12-21 16:41:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:01,059 INFO L470 AbstractCegarLoop]: Abstraction has 2914 states and 4336 transitions. [2021-12-21 16:41:01,061 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) [2021-12-21 16:41:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4336 transitions. [2021-12-21 16:41:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-21 16:41:01,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:01,066 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] [2021-12-21 16:41:01,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:41:01,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:01,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1357326777, now seen corresponding path program 1 times [2021-12-21 16:41:01,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:01,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199555814] [2021-12-21 16:41:01,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:01,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:41:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:41:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:41:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:41:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:41:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:41:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:41:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:41:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:41:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:41:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:41:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:41:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:41:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:41:01,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:01,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199555814] [2021-12-21 16:41:01,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199555814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:01,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:01,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:01,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970128588] [2021-12-21 16:41:01,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:01,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:01,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:01,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:01,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:01,676 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) [2021-12-21 16:41:04,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:04,260 INFO L93 Difference]: Finished difference Result 3057 states and 4702 transitions. [2021-12-21 16:41:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:41:04,261 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 [2021-12-21 16:41:04,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:04,278 INFO L225 Difference]: With dead ends: 3057 [2021-12-21 16:41:04,279 INFO L226 Difference]: Without dead ends: 3054 [2021-12-21 16:41:04,281 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 [2021-12-21 16:41:04,281 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 2716 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1478 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:04,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 3295 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1478 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-21 16:41:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2021-12-21 16:41:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2913. [2021-12-21 16:41:04,380 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) [2021-12-21 16:41:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4334 transitions. [2021-12-21 16:41:04,389 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4334 transitions. Word has length 268 [2021-12-21 16:41:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:04,390 INFO L470 AbstractCegarLoop]: Abstraction has 2913 states and 4334 transitions. [2021-12-21 16:41:04,390 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) [2021-12-21 16:41:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4334 transitions. [2021-12-21 16:41:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-21 16:41:04,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:04,394 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] [2021-12-21 16:41:04,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:41:04,394 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash 871997211, now seen corresponding path program 1 times [2021-12-21 16:41:04,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:04,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308696490] [2021-12-21 16:41:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:04,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:41:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:41:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:41:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:41:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:41:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:41:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:41:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:41:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:41:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:41:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:41:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:41:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:41:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:41:04,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:04,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308696490] [2021-12-21 16:41:04,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308696490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:04,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:04,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:04,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642126838] [2021-12-21 16:41:04,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:04,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:04,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:04,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:04,992 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) [2021-12-21 16:41:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:07,494 INFO L93 Difference]: Finished difference Result 3056 states and 4700 transitions. [2021-12-21 16:41:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:41:07,495 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 [2021-12-21 16:41:07,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:07,510 INFO L225 Difference]: With dead ends: 3056 [2021-12-21 16:41:07,511 INFO L226 Difference]: Without dead ends: 3053 [2021-12-21 16:41:07,512 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 [2021-12-21 16:41:07,513 INFO L933 BasicCegarLoop]: 2094 mSDtfsCounter, 2712 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 1478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1478 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:07,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2952 Valid, 3289 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1478 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-21 16:41:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2021-12-21 16:41:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2912. [2021-12-21 16:41:07,604 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) [2021-12-21 16:41:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4332 transitions. [2021-12-21 16:41:07,613 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4332 transitions. Word has length 269 [2021-12-21 16:41:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:07,614 INFO L470 AbstractCegarLoop]: Abstraction has 2912 states and 4332 transitions. [2021-12-21 16:41:07,615 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) [2021-12-21 16:41:07,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4332 transitions. [2021-12-21 16:41:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-21 16:41:07,618 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:07,619 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] [2021-12-21 16:41:07,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:41:07,619 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1261568970, now seen corresponding path program 1 times [2021-12-21 16:41:07,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:07,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894733708] [2021-12-21 16:41:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:07,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:41:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:41:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:41:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:41:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:41:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:41:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:41:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:41:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:41:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:41:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:41:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:41:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:41:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:41:08,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:08,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894733708] [2021-12-21 16:41:08,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894733708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:08,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:08,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:08,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483532639] [2021-12-21 16:41:08,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:08,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:08,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:08,222 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) [2021-12-21 16:41:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:13,150 INFO L93 Difference]: Finished difference Result 8873 states and 13563 transitions. [2021-12-21 16:41:13,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:41:13,151 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 [2021-12-21 16:41:13,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:13,188 INFO L225 Difference]: With dead ends: 8873 [2021-12-21 16:41:13,189 INFO L226 Difference]: Without dead ends: 6002 [2021-12-21 16:41:13,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:41:13,209 INFO L933 BasicCegarLoop]: 2465 mSDtfsCounter, 3140 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 1878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1878 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:13,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 6753 Invalid, 3953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1878 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-21 16:41:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-12-21 16:41:13,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 5726. [2021-12-21 16:41:13,464 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) [2021-12-21 16:41:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 8559 transitions. [2021-12-21 16:41:13,485 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 8559 transitions. Word has length 270 [2021-12-21 16:41:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:13,485 INFO L470 AbstractCegarLoop]: Abstraction has 5726 states and 8559 transitions. [2021-12-21 16:41:13,486 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) [2021-12-21 16:41:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 8559 transitions. [2021-12-21 16:41:13,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-21 16:41:13,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:13,495 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] [2021-12-21 16:41:13,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:41:13,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:13,496 INFO L85 PathProgramCache]: Analyzing trace with hash -309930588, now seen corresponding path program 1 times [2021-12-21 16:41:13,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:13,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007540906] [2021-12-21 16:41:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:13,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:41:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:41:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:41:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:41:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:41:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:41:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:41:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:41:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:41:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:41:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:41:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:41:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:41:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-21 16:41:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-21 16:41:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-21 16:41:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-21 16:41:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:41:14,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:14,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007540906] [2021-12-21 16:41:14,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007540906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:14,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:14,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:41:14,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206301291] [2021-12-21 16:41:14,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:14,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:41:14,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:14,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:41:14,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:41:14,067 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) [2021-12-21 16:41:21,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:21,184 INFO L93 Difference]: Finished difference Result 16591 states and 25018 transitions. [2021-12-21 16:41:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 16:41:21,184 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 [2021-12-21 16:41:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:21,234 INFO L225 Difference]: With dead ends: 16591 [2021-12-21 16:41:21,234 INFO L226 Difference]: Without dead ends: 10913 [2021-12-21 16:41:21,259 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 [2021-12-21 16:41:21,260 INFO L933 BasicCegarLoop]: 2122 mSDtfsCounter, 4366 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 3155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 5363 SdHoareTripleChecker+Invalid, 7536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3155 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:21,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4672 Valid, 5363 Invalid, 7536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3155 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-12-21 16:41:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2021-12-21 16:41:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 10352. [2021-12-21 16:41:21,618 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) [2021-12-21 16:41:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10352 states to 10352 states and 15289 transitions. [2021-12-21 16:41:21,655 INFO L78 Accepts]: Start accepts. Automaton has 10352 states and 15289 transitions. Word has length 306 [2021-12-21 16:41:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:21,657 INFO L470 AbstractCegarLoop]: Abstraction has 10352 states and 15289 transitions. [2021-12-21 16:41:21,657 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) [2021-12-21 16:41:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10352 states and 15289 transitions. [2021-12-21 16:41:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-21 16:41:21,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:21,664 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] [2021-12-21 16:41:21,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:41:21,665 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1685142080, now seen corresponding path program 1 times [2021-12-21 16:41:21,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:21,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323476652] [2021-12-21 16:41:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:21,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:41:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:41:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:41:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:41:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:41:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:41:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 16:41:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 16:41:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 16:41:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:41:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:41:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:41:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:41:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-21 16:41:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-21 16:41:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-21 16:41:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-21 16:41:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-21 16:41:22,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:22,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323476652] [2021-12-21 16:41:22,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323476652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:22,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:22,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:41:22,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685269755] [2021-12-21 16:41:22,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:22,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:41:22,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:22,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:41:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:41:22,245 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)