./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be96572b772689d3509e8ec5ce533f61ddca67dd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be96572b772689d3509e8ec5ce533f61ddca67dd ....................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UndeclaredFunctionException: a function that is called in the program is not declared in the program: write~unchecked~intINTTYPE8 --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:08:06,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:08:06,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:08:06,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:08:06,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:08:06,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:08:06,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:08:06,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:08:06,735 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:08:06,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:08:06,736 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:08:06,736 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:08:06,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:08:06,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:08:06,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:08:06,738 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:08:06,739 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:08:06,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:08:06,741 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:08:06,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:08:06,743 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:08:06,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:08:06,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:08:06,745 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:08:06,746 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:08:06,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:08:06,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:08:06,747 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:08:06,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:08:06,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:08:06,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:08:06,749 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:08:06,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:08:06,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:08:06,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:08:06,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:08:06,751 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-23 13:08:06,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:08:06,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:08:06,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:08:06,762 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:08:06,762 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:08:06,763 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:08:06,763 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:08:06,764 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:08:06,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:08:06,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:08:06,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:08:06,764 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:08:06,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:08:06,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:08:06,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:08:06,766 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:08:06,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:08:06,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:08:06,767 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:08:06,767 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-23 13:08:06,767 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> be96572b772689d3509e8ec5ce533f61ddca67dd [2018-11-23 13:08:06,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:08:06,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:08:06,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:08:06,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:08:06,804 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:08:06,804 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c [2018-11-23 13:08:06,850 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/f48ce45a4/f9bbf15b05504a8eb7e215fe1c7beac8/FLAGa037efc22 [2018-11-23 13:08:07,391 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:08:07,391 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c [2018-11-23 13:08:07,408 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/f48ce45a4/f9bbf15b05504a8eb7e215fe1c7beac8/FLAGa037efc22 [2018-11-23 13:08:07,873 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/f48ce45a4/f9bbf15b05504a8eb7e215fe1c7beac8 [2018-11-23 13:08:07,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:08:07,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:08:07,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:08:07,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:08:07,880 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:08:07,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:07" (1/1) ... [2018-11-23 13:08:07,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cb4742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:07, skipping insertion in model container [2018-11-23 13:08:07,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:07" (1/1) ... [2018-11-23 13:08:07,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:08:07,951 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:08:08,591 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:08:08,606 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:08:08,766 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:08:08,812 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:08:08,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08 WrapperNode [2018-11-23 13:08:08,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:08:08,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:08:08,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:08:08,813 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:08:08,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:08:08,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:08:08,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:08:08,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:08:08,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... [2018-11-23 13:08:08,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:08:08,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:08:08,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:08:08,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:08:08,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:08:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2018-11-23 13:08:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2018-11-23 13:08:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-23 13:08:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2018-11-23 13:08:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2018-11-23 13:08:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2018-11-23 13:08:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2018-11-23 13:08:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2018-11-23 13:08:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2018-11-23 13:08:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:08:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-23 13:08:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-23 13:08:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 13:08:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-23 13:08:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2018-11-23 13:08:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2018-11-23 13:08:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2018-11-23 13:08:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2018-11-23 13:08:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2018-11-23 13:08:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2018-11-23 13:08:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-11-23 13:08:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-11-23 13:08:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_8 [2018-11-23 13:08:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_8 [2018-11-23 13:08:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2018-11-23 13:08:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2018-11-23 13:08:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-11-23 13:08:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2018-11-23 13:08:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2018-11-23 13:08:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2018-11-23 13:08:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2018-11-23 13:08:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-11-23 13:08:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2018-11-23 13:08:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2018-11-23 13:08:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:08:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-23 13:08:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-23 13:08:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2018-11-23 13:08:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2018-11-23 13:08:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2018-11-23 13:08:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2018-11-23 13:08:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2018-11-23 13:08:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2018-11-23 13:08:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-23 13:08:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-23 13:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2018-11-23 13:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_7 [2018-11-23 13:08:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_7 [2018-11-23 13:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-23 13:08:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-23 13:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2018-11-23 13:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:08:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2018-11-23 13:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2018-11-23 13:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2018-11-23 13:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2018-11-23 13:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_10 [2018-11-23 13:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_10 [2018-11-23 13:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2018-11-23 13:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2018-11-23 13:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2018-11-23 13:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2018-11-23 13:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2018-11-23 13:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2018-11-23 13:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2018-11-23 13:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2018-11-23 13:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2018-11-23 13:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2018-11-23 13:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2018-11-23 13:08:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2018-11-23 13:08:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_6 [2018-11-23 13:08:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_6 [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 13:08:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2018-11-23 13:08:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2018-11-23 13:08:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2018-11-23 13:08:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2018-11-23 13:08:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2018-11-23 13:08:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2018-11-23 13:08:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2018-11-23 13:08:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2018-11-23 13:08:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2018-11-23 13:08:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2018-11-23 13:08:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2018-11-23 13:08:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2018-11-23 13:08:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_9 [2018-11-23 13:08:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_9 [2018-11-23 13:08:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2018-11-23 13:08:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2018-11-23 13:08:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2018-11-23 13:08:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2018-11-23 13:08:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2018-11-23 13:08:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2018-11-23 13:08:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2018-11-23 13:08:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_4 [2018-11-23 13:08:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_4 [2018-11-23 13:08:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2018-11-23 13:08:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 13:08:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2018-11-23 13:08:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:08:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2018-11-23 13:08:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2018-11-23 13:08:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2018-11-23 13:08:13,185 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:08:13,185 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:08:13,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:13 BoogieIcfgContainer [2018-11-23 13:08:13,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:08:13,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:08:13,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:08:13,188 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:08:13,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:08:07" (1/3) ... [2018-11-23 13:08:13,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9fc16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:13, skipping insertion in model container [2018-11-23 13:08:13,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:08" (2/3) ... [2018-11-23 13:08:13,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9fc16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:13, skipping insertion in model container [2018-11-23 13:08:13,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:13" (3/3) ... [2018-11-23 13:08:13,191 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c [2018-11-23 13:08:13,197 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:08:13,205 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:08:13,216 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:08:13,241 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:08:13,242 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:08:13,242 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:08:13,242 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:08:13,243 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:08:13,243 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:08:13,243 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:08:13,243 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:08:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states. [2018-11-23 13:08:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 13:08:13,279 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:13,280 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:13,281 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:13,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:13,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1683104994, now seen corresponding path program 1 times [2018-11-23 13:08:13,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:13,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:13,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:13,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:13,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-11-23 13:08:13,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:13,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:13,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:13,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:13,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:13,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:13,716 INFO L87 Difference]: Start difference. First operand 611 states. Second operand 3 states. [2018-11-23 13:08:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:14,018 INFO L93 Difference]: Finished difference Result 1256 states and 1752 transitions. [2018-11-23 13:08:14,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:14,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-11-23 13:08:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:14,036 INFO L225 Difference]: With dead ends: 1256 [2018-11-23 13:08:14,036 INFO L226 Difference]: Without dead ends: 651 [2018-11-23 13:08:14,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2018-11-23 13:08:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2018-11-23 13:08:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2018-11-23 13:08:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 894 transitions. [2018-11-23 13:08:14,112 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 894 transitions. Word has length 136 [2018-11-23 13:08:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:14,113 INFO L480 AbstractCegarLoop]: Abstraction has 651 states and 894 transitions. [2018-11-23 13:08:14,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 894 transitions. [2018-11-23 13:08:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-23 13:08:14,118 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:14,118 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:14,118 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:14,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:14,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2060198665, now seen corresponding path program 1 times [2018-11-23 13:08:14,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:14,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:14,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:14,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:14,123 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-11-23 13:08:14,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:14,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:14,352 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:14,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:14,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:14,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:14,354 INFO L87 Difference]: Start difference. First operand 651 states and 894 transitions. Second operand 3 states. [2018-11-23 13:08:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:14,766 INFO L93 Difference]: Finished difference Result 1504 states and 2088 transitions. [2018-11-23 13:08:14,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:14,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2018-11-23 13:08:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:14,771 INFO L225 Difference]: With dead ends: 1504 [2018-11-23 13:08:14,771 INFO L226 Difference]: Without dead ends: 900 [2018-11-23 13:08:14,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:14,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2018-11-23 13:08:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 897. [2018-11-23 13:08:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2018-11-23 13:08:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1214 transitions. [2018-11-23 13:08:14,803 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1214 transitions. Word has length 186 [2018-11-23 13:08:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:14,803 INFO L480 AbstractCegarLoop]: Abstraction has 897 states and 1214 transitions. [2018-11-23 13:08:14,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1214 transitions. [2018-11-23 13:08:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-23 13:08:14,805 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:14,806 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:14,806 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:14,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:14,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1473164356, now seen corresponding path program 1 times [2018-11-23 13:08:14,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:14,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:14,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:14,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:14,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-11-23 13:08:14,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:14,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:08:14,977 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:14,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:08:14,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:08:14,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:08:14,978 INFO L87 Difference]: Start difference. First operand 897 states and 1214 transitions. Second operand 4 states. [2018-11-23 13:08:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:15,007 INFO L93 Difference]: Finished difference Result 1787 states and 2419 transitions. [2018-11-23 13:08:15,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:08:15,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-11-23 13:08:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:15,012 INFO L225 Difference]: With dead ends: 1787 [2018-11-23 13:08:15,012 INFO L226 Difference]: Without dead ends: 901 [2018-11-23 13:08:15,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:08:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-11-23 13:08:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 897. [2018-11-23 13:08:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2018-11-23 13:08:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1213 transitions. [2018-11-23 13:08:15,037 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1213 transitions. Word has length 186 [2018-11-23 13:08:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:15,037 INFO L480 AbstractCegarLoop]: Abstraction has 897 states and 1213 transitions. [2018-11-23 13:08:15,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:08:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1213 transitions. [2018-11-23 13:08:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-23 13:08:15,039 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:15,040 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:15,040 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:15,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:15,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1128248611, now seen corresponding path program 1 times [2018-11-23 13:08:15,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:15,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:15,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:15,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:15,043 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-11-23 13:08:15,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:15,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:15,228 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:15,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:15,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:15,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:15,229 INFO L87 Difference]: Start difference. First operand 897 states and 1213 transitions. Second operand 3 states. [2018-11-23 13:08:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:15,455 INFO L93 Difference]: Finished difference Result 1714 states and 2336 transitions. [2018-11-23 13:08:15,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:15,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2018-11-23 13:08:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:15,463 INFO L225 Difference]: With dead ends: 1714 [2018-11-23 13:08:15,463 INFO L226 Difference]: Without dead ends: 1711 [2018-11-23 13:08:15,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2018-11-23 13:08:15,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1707. [2018-11-23 13:08:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2018-11-23 13:08:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2326 transitions. [2018-11-23 13:08:15,518 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2326 transitions. Word has length 186 [2018-11-23 13:08:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:15,519 INFO L480 AbstractCegarLoop]: Abstraction has 1707 states and 2326 transitions. [2018-11-23 13:08:15,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2326 transitions. [2018-11-23 13:08:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-23 13:08:15,523 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:15,523 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:15,523 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:15,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:15,523 INFO L82 PathProgramCache]: Analyzing trace with hash 587129737, now seen corresponding path program 1 times [2018-11-23 13:08:15,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:15,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:15,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:15,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:15,527 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-11-23 13:08:15,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:15,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:15,755 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:15,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:15,755 INFO L87 Difference]: Start difference. First operand 1707 states and 2326 transitions. Second operand 3 states. [2018-11-23 13:08:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:16,101 INFO L93 Difference]: Finished difference Result 3862 states and 5306 transitions. [2018-11-23 13:08:16,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:16,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2018-11-23 13:08:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:16,107 INFO L225 Difference]: With dead ends: 3862 [2018-11-23 13:08:16,107 INFO L226 Difference]: Without dead ends: 2202 [2018-11-23 13:08:16,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2018-11-23 13:08:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2199. [2018-11-23 13:08:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2199 states. [2018-11-23 13:08:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2965 transitions. [2018-11-23 13:08:16,153 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2965 transitions. Word has length 204 [2018-11-23 13:08:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:16,153 INFO L480 AbstractCegarLoop]: Abstraction has 2199 states and 2965 transitions. [2018-11-23 13:08:16,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2965 transitions. [2018-11-23 13:08:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-23 13:08:16,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:16,157 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:16,157 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:16,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:16,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2083066262, now seen corresponding path program 1 times [2018-11-23 13:08:16,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:16,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:16,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:16,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:16,160 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-11-23 13:08:16,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:16,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:16,297 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:16,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:16,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:16,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:16,297 INFO L87 Difference]: Start difference. First operand 2199 states and 2965 transitions. Second operand 3 states. [2018-11-23 13:08:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:16,632 INFO L93 Difference]: Finished difference Result 4846 states and 6584 transitions. [2018-11-23 13:08:16,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:16,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2018-11-23 13:08:16,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:16,639 INFO L225 Difference]: With dead ends: 4846 [2018-11-23 13:08:16,639 INFO L226 Difference]: Without dead ends: 2694 [2018-11-23 13:08:16,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2018-11-23 13:08:16,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2691. [2018-11-23 13:08:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2691 states. [2018-11-23 13:08:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3604 transitions. [2018-11-23 13:08:16,695 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3604 transitions. Word has length 233 [2018-11-23 13:08:16,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:16,695 INFO L480 AbstractCegarLoop]: Abstraction has 2691 states and 3604 transitions. [2018-11-23 13:08:16,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:16,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3604 transitions. [2018-11-23 13:08:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-11-23 13:08:16,699 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:16,699 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:16,699 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:16,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:16,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1947287237, now seen corresponding path program 1 times [2018-11-23 13:08:16,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:16,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:16,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:16,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:16,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2018-11-23 13:08:16,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:16,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:08:16,931 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:16,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:08:16,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:08:16,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:08:16,932 INFO L87 Difference]: Start difference. First operand 2691 states and 3604 transitions. Second operand 4 states. [2018-11-23 13:08:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:17,435 INFO L93 Difference]: Finished difference Result 5335 states and 7190 transitions. [2018-11-23 13:08:17,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:17,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2018-11-23 13:08:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:17,442 INFO L225 Difference]: With dead ends: 5335 [2018-11-23 13:08:17,442 INFO L226 Difference]: Without dead ends: 2691 [2018-11-23 13:08:17,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:08:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2018-11-23 13:08:17,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2018-11-23 13:08:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2691 states. [2018-11-23 13:08:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3507 transitions. [2018-11-23 13:08:17,503 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3507 transitions. Word has length 277 [2018-11-23 13:08:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:17,503 INFO L480 AbstractCegarLoop]: Abstraction has 2691 states and 3507 transitions. [2018-11-23 13:08:17,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:08:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3507 transitions. [2018-11-23 13:08:17,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-11-23 13:08:17,507 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:17,508 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:17,508 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:17,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:17,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1203753851, now seen corresponding path program 1 times [2018-11-23 13:08:17,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:17,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:17,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:17,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:17,510 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:17,663 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-11-23 13:08:17,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:17,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:08:17,663 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:17,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:08:17,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:08:17,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:08:17,664 INFO L87 Difference]: Start difference. First operand 2691 states and 3507 transitions. Second operand 5 states. [2018-11-23 13:08:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:17,976 INFO L93 Difference]: Finished difference Result 6552 states and 8505 transitions. [2018-11-23 13:08:17,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:08:17,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2018-11-23 13:08:17,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:17,989 INFO L225 Difference]: With dead ends: 6552 [2018-11-23 13:08:17,989 INFO L226 Difference]: Without dead ends: 3908 [2018-11-23 13:08:17,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:08:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2018-11-23 13:08:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 2699. [2018-11-23 13:08:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2018-11-23 13:08:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3515 transitions. [2018-11-23 13:08:18,091 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3515 transitions. Word has length 277 [2018-11-23 13:08:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:18,091 INFO L480 AbstractCegarLoop]: Abstraction has 2699 states and 3515 transitions. [2018-11-23 13:08:18,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:08:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3515 transitions. [2018-11-23 13:08:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-23 13:08:18,097 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:18,097 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:18,097 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:18,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:18,097 INFO L82 PathProgramCache]: Analyzing trace with hash -972067496, now seen corresponding path program 1 times [2018-11-23 13:08:18,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:18,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:18,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:18,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:18,100 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2018-11-23 13:08:18,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:18,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:08:18,332 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:18,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:08:18,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:08:18,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:08:18,333 INFO L87 Difference]: Start difference. First operand 2699 states and 3515 transitions. Second operand 5 states. [2018-11-23 13:08:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:18,784 INFO L93 Difference]: Finished difference Result 7188 states and 9320 transitions. [2018-11-23 13:08:18,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:08:18,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 286 [2018-11-23 13:08:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:18,800 INFO L225 Difference]: With dead ends: 7188 [2018-11-23 13:08:18,800 INFO L226 Difference]: Without dead ends: 4536 [2018-11-23 13:08:18,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:08:18,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2018-11-23 13:08:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 2707. [2018-11-23 13:08:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2707 states. [2018-11-23 13:08:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3523 transitions. [2018-11-23 13:08:18,932 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3523 transitions. Word has length 286 [2018-11-23 13:08:18,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:18,932 INFO L480 AbstractCegarLoop]: Abstraction has 2707 states and 3523 transitions. [2018-11-23 13:08:18,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:08:18,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3523 transitions. [2018-11-23 13:08:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-11-23 13:08:18,939 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:18,939 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:18,940 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:18,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:18,940 INFO L82 PathProgramCache]: Analyzing trace with hash 281763058, now seen corresponding path program 1 times [2018-11-23 13:08:18,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:18,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:18,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:18,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:18,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-23 13:08:19,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:19,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:19,162 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:19,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:19,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:19,164 INFO L87 Difference]: Start difference. First operand 2707 states and 3523 transitions. Second operand 3 states. [2018-11-23 13:08:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:19,274 INFO L93 Difference]: Finished difference Result 5369 states and 6997 transitions. [2018-11-23 13:08:19,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:19,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2018-11-23 13:08:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:19,284 INFO L225 Difference]: With dead ends: 5369 [2018-11-23 13:08:19,284 INFO L226 Difference]: Without dead ends: 2709 [2018-11-23 13:08:19,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:19,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2018-11-23 13:08:19,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2018-11-23 13:08:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2709 states. [2018-11-23 13:08:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3525 transitions. [2018-11-23 13:08:19,412 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3525 transitions. Word has length 329 [2018-11-23 13:08:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:19,413 INFO L480 AbstractCegarLoop]: Abstraction has 2709 states and 3525 transitions. [2018-11-23 13:08:19,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3525 transitions. [2018-11-23 13:08:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-11-23 13:08:19,419 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:19,420 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:19,420 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:19,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:19,420 INFO L82 PathProgramCache]: Analyzing trace with hash 705409780, now seen corresponding path program 1 times [2018-11-23 13:08:19,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:19,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:19,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:19,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:19,423 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-23 13:08:19,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:19,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:08:19,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:19,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:08:19,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:08:19,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:19,692 INFO L87 Difference]: Start difference. First operand 2709 states and 3525 transitions. Second operand 3 states. [2018-11-23 13:08:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:19,795 INFO L93 Difference]: Finished difference Result 5373 states and 7001 transitions. [2018-11-23 13:08:19,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:08:19,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2018-11-23 13:08:19,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:19,804 INFO L225 Difference]: With dead ends: 5373 [2018-11-23 13:08:19,805 INFO L226 Difference]: Without dead ends: 2711 [2018-11-23 13:08:19,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:08:19,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2018-11-23 13:08:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2711. [2018-11-23 13:08:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2018-11-23 13:08:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3527 transitions. [2018-11-23 13:08:19,912 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3527 transitions. Word has length 329 [2018-11-23 13:08:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:19,913 INFO L480 AbstractCegarLoop]: Abstraction has 2711 states and 3527 transitions. [2018-11-23 13:08:19,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:08:19,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3527 transitions. [2018-11-23 13:08:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-11-23 13:08:19,919 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:19,919 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:19,919 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:19,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:19,920 INFO L82 PathProgramCache]: Analyzing trace with hash 311042994, now seen corresponding path program 1 times [2018-11-23 13:08:19,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:19,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:19,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:19,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:19,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-23 13:08:20,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:08:20,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:08:20,149 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:08:20,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:08:20,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:08:20,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:08:20,150 INFO L87 Difference]: Start difference. First operand 2711 states and 3527 transitions. Second operand 4 states. [2018-11-23 13:08:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:08:20,273 INFO L93 Difference]: Finished difference Result 5381 states and 7009 transitions. [2018-11-23 13:08:20,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:08:20,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2018-11-23 13:08:20,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:08:20,282 INFO L225 Difference]: With dead ends: 5381 [2018-11-23 13:08:20,283 INFO L226 Difference]: Without dead ends: 2717 [2018-11-23 13:08:20,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:08:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2018-11-23 13:08:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2715. [2018-11-23 13:08:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2018-11-23 13:08:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3531 transitions. [2018-11-23 13:08:20,387 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3531 transitions. Word has length 329 [2018-11-23 13:08:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:08:20,388 INFO L480 AbstractCegarLoop]: Abstraction has 2715 states and 3531 transitions. [2018-11-23 13:08:20,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:08:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3531 transitions. [2018-11-23 13:08:20,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-11-23 13:08:20,394 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:08:20,394 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:08:20,394 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:08:20,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:08:20,395 INFO L82 PathProgramCache]: Analyzing trace with hash -718316304, now seen corresponding path program 1 times [2018-11-23 13:08:20,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:08:20,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:20,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:08:20,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:08:20,397 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:08:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:08:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 31 proven. 16 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-23 13:08:20,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:08:20,737 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:08:20,737 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 330 with the following transitions: [2018-11-23 13:08:20,739 INFO L202 CegarAbsIntRunner]: [175], [177], [178], [179], [181], [183], [185], [187], [190], [192], [194], [196], [198], [200], [203], [206], [219], [222], [225], [227], [230], [238], [241], [244], [251], [264], [301], [304], [307], [309], [312], [320], [357], [394], [407], [444], [481], [518], [535], [538], [541], [560], [563], [566], [578], [581], [584], [586], [591], [594], [678], [679], [700], [702], [704], [706], [707], [708], [710], [714], [717], [738], [740], [775], [780], [781], [782], [787], [790], [792], [796], [819], [821], [823], [827], [829], [834], [840], [842], [844], [849], [855], [857], [862], [885], [887], [892], [894], [899], [911], [913], [914], [922], [924], [930], [932], [933], [934], [987], [988], [1001], [1006], [1007], [1008], [1011], [1012], [1013], [1173], [1174], [1197], [1202], [1213], [1215], [1218], [1239], [1242], [1244], [1245], [1246], [1248], [1249], [1252], [1255], [1267], [1268], [1292], [1295], [1303], [1304], [1305], [1311], [1312], [1313], [1315], [1316], [1317], [1319], [1320], [1381], [1382], [1402], [1404], [1405], [1424], [1425], [1426], [1427], [1428], [1429], [1430], [1431], [1432], [1433], [1434], [1435], [1436], [1437], [1438], [1439], [1440], [1441], [1442], [1443], [1444], [1445], [1448], [1449], [1450], [1462], [1463], [1510], [1511], [1512], [1513], [1522], [1523], [1524], [1525], [1526], [1527], [1528], [1529], [1530], [1531], [1536], [1537], [1538], [1539], [1540], [1541], [1542], [1543], [1544], [1545], [1552], [1553], [1566], [1592], [1593], [1594], [1600], [1601], [1602], [1603], [1612], [1614], [1615], [1616], [1617], [1626], [1627], [1628], [1630], [1631] [2018-11-23 13:08:20,778 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:08:20,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:08:21,824 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-23 13:08:21,827 INFO L168 Benchmark]: Toolchain (without parser) took 13951.63 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 643.3 MB). Free memory was 951.2 MB in the beginning and 990.2 MB in the end (delta: -39.0 MB). Peak memory consumption was 604.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,829 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:08:21,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.2 MB in the beginning and 1.0 GB in the end (delta: -90.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,830 INFO L168 Benchmark]: Boogie Preprocessor took 102.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,830 INFO L168 Benchmark]: RCFGBuilder took 4222.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -72.3 MB). Peak memory consumption was 175.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,831 INFO L168 Benchmark]: TraceAbstraction took 8640.51 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 438.8 MB). Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 107.5 MB). Peak memory consumption was 546.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:21,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 935.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.2 MB in the beginning and 1.0 GB in the end (delta: -90.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4222.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -72.3 MB). Peak memory consumption was 175.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8640.51 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 438.8 MB). Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 107.5 MB). Peak memory consumption was 546.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 13:08:23,267 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:08:23,268 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:08:23,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:08:23,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:08:23,277 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:08:23,278 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:08:23,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:08:23,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:08:23,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:08:23,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:08:23,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:08:23,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:08:23,283 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:08:23,284 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:08:23,285 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:08:23,286 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:08:23,287 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:08:23,288 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:08:23,289 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:08:23,290 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:08:23,291 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:08:23,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:08:23,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:08:23,293 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:08:23,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:08:23,294 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:08:23,295 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:08:23,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:08:23,297 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:08:23,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:08:23,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:08:23,298 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:08:23,298 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:08:23,298 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:08:23,299 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:08:23,299 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2018-11-23 13:08:23,310 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:08:23,310 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:08:23,311 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:08:23,311 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:08:23,311 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:08:23,312 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:08:23,312 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:08:23,313 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:08:23,313 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:08:23,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:08:23,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:08:23,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 13:08:23,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:08:23,316 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 13:08:23,316 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 13:08:23,316 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> be96572b772689d3509e8ec5ce533f61ddca67dd [2018-11-23 13:08:23,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:08:23,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:08:23,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:08:23,359 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:08:23,359 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:08:23,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c [2018-11-23 13:08:23,403 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/00e369d4b/21911ee510d04effab157beadcd81d50/FLAG817c77f5b [2018-11-23 13:08:23,860 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:08:23,861 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8_false-unreach-call.cil.out.c [2018-11-23 13:08:23,884 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/00e369d4b/21911ee510d04effab157beadcd81d50/FLAG817c77f5b [2018-11-23 13:08:24,379 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_140f2d9c-c94d-4424-b3b7-5a64174a39c1/bin-2019/utaipan/data/00e369d4b/21911ee510d04effab157beadcd81d50 [2018-11-23 13:08:24,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:08:24,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:08:24,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:08:24,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:08:24,386 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:08:24,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:24" (1/1) ... [2018-11-23 13:08:24,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38223e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:24, skipping insertion in model container [2018-11-23 13:08:24,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:24" (1/1) ... [2018-11-23 13:08:24,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:08:24,451 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:08:25,039 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:08:25,154 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:08:25,293 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:08:25,307 ERROR L311 MainTranslator]: UndeclaredFunctionException: a function that is called in the program is not declared in the program: write~unchecked~intINTTYPE8: CACSL2BoogieTranslator: UndeclaredFunctionException: a function that is called in the program is not declared in the program: write~unchecked~intINTTYPE8: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.ProcedureManager.computeFinalProcedureDeclarations(ProcedureManager.java:193) [2018-11-23 13:08:25,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a824cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:25, skipping insertion in model container [2018-11-23 13:08:25,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:08:25,308 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2018-11-23 13:08:25,309 INFO L168 Benchmark]: Toolchain (without parser) took 926.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:25,310 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:08:25,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:08:25,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 924.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UndeclaredFunctionException: a function that is called in the program is not declared in the program: write~unchecked~intINTTYPE8 CACSL2BoogieTranslator: UndeclaredFunctionException: a function that is called in the program is not declared in the program: write~unchecked~intINTTYPE8: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.ProcedureManager.computeFinalProcedureDeclarations(ProcedureManager.java:193) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...