./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 68973d1d628799fb79308611b6c84a5074c21cb2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 68973d1d628799fb79308611b6c84a5074c21cb2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:26:18,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:26:18,766 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:26:18,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:26:18,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:26:18,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:26:18,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:26:18,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:26:18,777 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:26:18,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:26:18,778 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:26:18,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:26:18,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:26:18,779 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:26:18,779 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:26:18,780 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:26:18,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:26:18,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:26:18,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:26:18,783 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:26:18,784 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:26:18,785 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:26:18,787 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:26:18,787 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:26:18,787 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:26:18,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:26:18,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:26:18,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:26:18,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:26:18,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:26:18,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:26:18,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:26:18,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:26:18,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:26:18,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:26:18,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:26:18,792 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-18 09:26:18,799 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:26:18,799 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:26:18,800 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:26:18,800 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:26:18,800 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:26:18,801 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-18 09:26:18,801 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:26:18,802 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:26:18,802 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:26:18,802 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:26:18,802 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:26:18,803 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:26:18,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:26:18,804 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:26:18,804 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:26:18,805 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:26:18,805 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:26:18,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:26:18,805 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:26:18,805 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-18 09:26:18,805 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_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 -> 68973d1d628799fb79308611b6c84a5074c21cb2 [2018-11-18 09:26:18,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:26:18,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:26:18,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:26:18,847 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:26:18,847 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:26:18,848 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:18,893 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/84f5df7f3/f2e8f3f3a1704dad80f0365c5b932f36/FLAG15cda8b1d [2018-11-18 09:26:19,394 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:26:19,394 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:19,412 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/84f5df7f3/f2e8f3f3a1704dad80f0365c5b932f36/FLAG15cda8b1d [2018-11-18 09:26:19,654 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/84f5df7f3/f2e8f3f3a1704dad80f0365c5b932f36 [2018-11-18 09:26:19,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:26:19,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:26:19,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:26:19,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:26:19,659 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:26:19,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:26:19" (1/1) ... [2018-11-18 09:26:19,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24561238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:19, skipping insertion in model container [2018-11-18 09:26:19,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:26:19" (1/1) ... [2018-11-18 09:26:19,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:26:19,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:26:20,695 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:26:20,737 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:26:21,057 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:26:21,131 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:26:21,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21 WrapperNode [2018-11-18 09:26:21,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:26:21,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:26:21,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:26:21,132 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:26:21,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:26:21,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:26:21,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:26:21,172 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:26:21,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... [2018-11-18 09:26:21,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:26:21,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:26:21,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:26:21,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:26:21,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 [2018-11-18 09:26:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure raw_open [2018-11-18 09:26:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_open [2018-11-18 09:26:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2018-11-18 09:26:21,292 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2018-11-18 09:26:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 09:26:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-18 09:26:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-18 09:26:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_read_iter [2018-11-18 09:26:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure raw_exit [2018-11-18 09:26:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_exit [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2018-11-18 09:26:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_6 [2018-11-18 09:26:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_6 [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2018-11-18 09:26:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2018-11-18 09:26:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure raw_init [2018-11-18 09:26:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_init [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 09:26:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_5 [2018-11-18 09:26:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_5 [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2018-11-18 09:26:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ctl_ioctl [2018-11-18 09:26:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ctl_ioctl [2018-11-18 09:26:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure bind_get [2018-11-18 09:26:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_get [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2018-11-18 09:26:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-18 09:26:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-18 09:26:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_7 [2018-11-18 09:26:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_7 [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_9 [2018-11-18 09:26:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_9 [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_8 [2018-11-18 09:26:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_8 [2018-11-18 09:26:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ctl_compat_ioctl [2018-11-18 09:26:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ctl_compat_ioctl [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2018-11-18 09:26:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure bind_set [2018-11-18 09:26:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_set [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-18 09:26:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-18 09:26:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-18 09:26:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:26:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:26:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2018-11-18 09:26:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2018-11-18 09:26:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2018-11-18 09:26:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2018-11-18 09:26:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2018-11-18 09:26:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2018-11-18 09:26:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2018-11-18 09:26:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2018-11-18 09:26:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:26:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2018-11-18 09:26:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2018-11-18 09:26:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2018-11-18 09:26:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2018-11-18 09:26:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_ioctl [2018-11-18 09:26:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2018-11-18 09:26:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2018-11-18 09:26:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2018-11-18 09:26:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2018-11-18 09:26:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ioctl [2018-11-18 09:26:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ioctl [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_fsync [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2018-11-18 09:26:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure igrab [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2018-11-18 09:26:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_write_iter [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 09:26:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev_region [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:26:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:26:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure raw_release [2018-11-18 09:26:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_release [2018-11-18 09:26:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2018-11-18 09:26:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2018-11-18 09:26:24,588 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:26:24,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:26:24 BoogieIcfgContainer [2018-11-18 09:26:24,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:26:24,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:26:24,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:26:24,593 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:26:24,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:26:19" (1/3) ... [2018-11-18 09:26:24,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5764dd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:26:24, skipping insertion in model container [2018-11-18 09:26:24,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:21" (2/3) ... [2018-11-18 09:26:24,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5764dd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:26:24, skipping insertion in model container [2018-11-18 09:26:24,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:26:24" (3/3) ... [2018-11-18 09:26:24,596 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:24,604 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:26:24,611 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:26:24,624 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:26:24,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:26:24,651 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:26:24,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:26:24,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:26:24,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:26:24,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:26:24,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:26:24,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:26:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2018-11-18 09:26:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-18 09:26:24,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:24,688 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:24,690 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:24,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:24,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1806405689, now seen corresponding path program 1 times [2018-11-18 09:26:24,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:26:24,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:24,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:24,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:24,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:26:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2018-11-18 09:26:25,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:25,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:26:25,143 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:26:25,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:26:25,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:26:25,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:25,156 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 3 states. [2018-11-18 09:26:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:27,275 INFO L93 Difference]: Finished difference Result 875 states and 1185 transitions. [2018-11-18 09:26:27,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:26:27,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-11-18 09:26:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:27,291 INFO L225 Difference]: With dead ends: 875 [2018-11-18 09:26:27,291 INFO L226 Difference]: Without dead ends: 557 [2018-11-18 09:26:27,295 INFO L604 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 [2018-11-18 09:26:27,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-18 09:26:27,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 554. [2018-11-18 09:26:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-11-18 09:26:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 742 transitions. [2018-11-18 09:26:27,360 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 742 transitions. Word has length 198 [2018-11-18 09:26:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:27,361 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 742 transitions. [2018-11-18 09:26:27,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:26:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 742 transitions. [2018-11-18 09:26:27,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-18 09:26:27,366 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:27,366 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:27,366 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:27,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash -907449840, now seen corresponding path program 1 times [2018-11-18 09:26:27,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:26:27,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:27,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:27,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:27,370 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:26:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2018-11-18 09:26:27,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:27,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:26:27,642 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:26:27,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:26:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:26:27,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:26:27,644 INFO L87 Difference]: Start difference. First operand 554 states and 742 transitions. Second operand 5 states. [2018-11-18 09:26:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:30,278 INFO L93 Difference]: Finished difference Result 1053 states and 1415 transitions. [2018-11-18 09:26:30,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:26:30,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2018-11-18 09:26:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:30,282 INFO L225 Difference]: With dead ends: 1053 [2018-11-18 09:26:30,282 INFO L226 Difference]: Without dead ends: 554 [2018-11-18 09:26:30,284 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:26:30,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-11-18 09:26:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-11-18 09:26:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-11-18 09:26:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 741 transitions. [2018-11-18 09:26:30,312 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 741 transitions. Word has length 200 [2018-11-18 09:26:30,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:30,313 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 741 transitions. [2018-11-18 09:26:30,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:26:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 741 transitions. [2018-11-18 09:26:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-18 09:26:30,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:30,317 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:30,317 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:30,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:30,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1494255854, now seen corresponding path program 1 times [2018-11-18 09:26:30,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:26:30,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:30,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:30,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:26:30,321 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:26:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 42 proven. 35 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-11-18 09:26:30,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:26:30,544 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:26:30,545 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-18 09:26:30,546 INFO L202 CegarAbsIntRunner]: [56], [58], [60], [62], [64], [66], [68], [70], [72], [74], [76], [78], [80], [82], [84], [86], [88], [90], [177], [180], [183], [195], [198], [201], [203], [208], [212], [376], [377], [414], [419], [421], [424], [451], [452], [548], [649], [655], [656], [657], [659], [660], [661], [662], [667], [676], [678], [679], [707], [708], [709], [710], [711], [712], [713], [714], [715], [716], [717], [718], [719], [720], [721], [722], [723], [724], [725], [726], [727], [728], [729], [730], [731], [732], [733], [734], [735], [736], [737], [738], [749], [750], [763], [817], [818], [819], [821], [822], [823], [825], [826] [2018-11-18 09:26:30,579 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:26:30,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:26:30,697 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) 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 [2018-11-18 09:26:30,701 INFO L168 Benchmark]: Toolchain (without parser) took 11044.72 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 291.0 MB). Free memory was 951.2 MB in the beginning and 1.2 GB in the end (delta: -280.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:26:30,702 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:26:30,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1474.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.2 MB in the beginning and 943.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 241.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:26:30,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.78 ms. Allocated memory is still 1.2 GB. Free memory was 943.1 MB in the beginning and 939.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:26:30,703 INFO L168 Benchmark]: Boogie Preprocessor took 67.39 ms. Allocated memory is still 1.2 GB. Free memory was 939.1 MB in the beginning and 931.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:26:30,704 INFO L168 Benchmark]: RCFGBuilder took 3349.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 931.2 MB in the beginning and 913.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:26:30,705 INFO L168 Benchmark]: TraceAbstraction took 6110.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 913.6 MB in the beginning and 1.2 GB in the end (delta: -317.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:26:30,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1474.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.2 MB in the beginning and 943.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 241.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.78 ms. Allocated memory is still 1.2 GB. Free memory was 943.1 MB in the beginning and 939.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.39 ms. Allocated memory is still 1.2 GB. Free memory was 939.1 MB in the beginning and 931.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3349.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 931.2 MB in the beginning and 913.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6110.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 913.6 MB in the beginning and 1.2 GB in the end (delta: -317.6 MB). There was no memory consumed. 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 0.1.23-5842f4b [2018-11-18 09:26:32,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:26:32,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:26:32,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:26:32,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:26:32,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:26:32,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:26:32,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:26:32,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:26:32,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:26:32,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:26:32,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:26:32,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:26:32,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:26:32,184 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:26:32,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:26:32,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:26:32,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:26:32,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:26:32,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:26:32,189 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:26:32,190 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:26:32,192 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:26:32,192 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:26:32,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:26:32,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:26:32,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:26:32,194 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:26:32,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:26:32,195 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:26:32,196 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:26:32,196 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:26:32,196 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:26:32,196 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:26:32,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:26:32,198 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:26:32,199 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2018-11-18 09:26:32,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:26:32,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:26:32,210 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:26:32,210 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:26:32,210 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:26:32,211 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:26:32,211 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:26:32,211 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:26:32,211 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:26:32,211 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:26:32,212 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:26:32,212 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:26:32,212 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:26:32,212 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:26:32,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:26:32,212 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:26:32,213 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:26:32,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:26:32,214 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:26:32,214 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:26:32,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:26:32,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:26:32,215 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:26:32,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:26:32,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:26:32,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:26:32,215 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:26:32,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:26:32,216 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 09:26:32,216 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:26:32,216 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:26:32,216 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 09:26:32,216 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_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 -> 68973d1d628799fb79308611b6c84a5074c21cb2 [2018-11-18 09:26:32,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:26:32,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:26:32,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:26:32,261 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:26:32,261 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:26:32,262 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:32,301 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/67b0487c9/155c2262359441149a9a506aea1b81df/FLAGfa66aea1a [2018-11-18 09:26:32,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:26:32,844 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:32,861 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/67b0487c9/155c2262359441149a9a506aea1b81df/FLAGfa66aea1a [2018-11-18 09:26:33,283 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/data/67b0487c9/155c2262359441149a9a506aea1b81df [2018-11-18 09:26:33,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:26:33,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:26:33,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:26:33,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:26:33,290 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:26:33,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:26:33" (1/1) ... [2018-11-18 09:26:33,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbdf1aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:33, skipping insertion in model container [2018-11-18 09:26:33,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:26:33" (1/1) ... [2018-11-18 09:26:33,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:26:33,367 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:26:34,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:26:34,486 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:26:34,740 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:26:34,830 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:26:34,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34 WrapperNode [2018-11-18 09:26:34,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:26:34,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:26:34,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:26:34,831 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:26:34,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:26:34,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:26:34,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:26:34,873 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:26:34,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... [2018-11-18 09:26:34,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:26:34,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:26:34,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:26:34,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:26:34,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/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 [2018-11-18 09:26:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure raw_open [2018-11-18 09:26:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_open [2018-11-18 09:26:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2018-11-18 09:26:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2018-11-18 09:26:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2018-11-18 09:26:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:26:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-18 09:26:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 09:26:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-18 09:26:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_read_iter [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure raw_exit [2018-11-18 09:26:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_exit [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2018-11-18 09:26:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2018-11-18 09:26:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_6 [2018-11-18 09:26:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_6 [2018-11-18 09:26:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2018-11-18 09:26:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2018-11-18 09:26:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure raw_init [2018-11-18 09:26:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_init [2018-11-18 09:26:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 09:26:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 09:26:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_5 [2018-11-18 09:26:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_5 [2018-11-18 09:26:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2018-11-18 09:26:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2018-11-18 09:26:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ctl_ioctl [2018-11-18 09:26:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ctl_ioctl [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure bind_get [2018-11-18 09:26:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_get [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-18 09:26:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2018-11-18 09:26:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2018-11-18 09:26:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-18 09:26:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-18 09:26:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2018-11-18 09:26:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2018-11-18 09:26:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 09:26:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_7 [2018-11-18 09:26:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_7 [2018-11-18 09:26:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2018-11-18 09:26:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2018-11-18 09:26:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_9 [2018-11-18 09:26:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_9 [2018-11-18 09:26:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2018-11-18 09:26:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_8 [2018-11-18 09:26:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_8 [2018-11-18 09:26:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ctl_compat_ioctl [2018-11-18 09:26:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ctl_compat_ioctl [2018-11-18 09:26:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2018-11-18 09:26:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2018-11-18 09:26:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure bind_set [2018-11-18 09:26:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_set [2018-11-18 09:26:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-18 09:26:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-18 09:26:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2018-11-18 09:26:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-18 09:26:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-18 09:26:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:26:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:26:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2018-11-18 09:26:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2018-11-18 09:26:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2018-11-18 09:26:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2018-11-18 09:26:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2018-11-18 09:26:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2018-11-18 09:26:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:26:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 09:26:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2018-11-18 09:26:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2018-11-18 09:26:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_ioctl [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2018-11-18 09:26:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2018-11-18 09:26:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2018-11-18 09:26:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure raw_ioctl [2018-11-18 09:26:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_ioctl [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 09:26:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_fsync [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2018-11-18 09:26:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure igrab [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2018-11-18 09:26:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_write_iter [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 09:26:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev_region [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:26:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:26:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure raw_release [2018-11-18 09:26:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_release [2018-11-18 09:26:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2018-11-18 09:26:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2018-11-18 09:26:38,653 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:26:38,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:26:38 BoogieIcfgContainer [2018-11-18 09:26:38,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:26:38,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:26:38,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:26:38,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:26:38,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:26:33" (1/3) ... [2018-11-18 09:26:38,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306ae178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:26:38, skipping insertion in model container [2018-11-18 09:26:38,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:26:34" (2/3) ... [2018-11-18 09:26:38,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306ae178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:26:38, skipping insertion in model container [2018-11-18 09:26:38,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:26:38" (3/3) ... [2018-11-18 09:26:38,660 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point_false-unreach-call.cil.out.c [2018-11-18 09:26:38,666 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:26:38,672 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:26:38,682 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:26:38,706 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:26:38,707 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:26:38,707 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:26:38,707 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:26:38,707 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:26:38,708 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:26:38,708 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:26:38,708 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:26:38,708 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:26:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2018-11-18 09:26:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-18 09:26:38,736 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:38,737 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:38,738 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:38,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:38,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1806405689, now seen corresponding path program 1 times [2018-11-18 09:26:38,747 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:38,747 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:38,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:39,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2018-11-18 09:26:39,176 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:39,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:39,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:26:39,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:26:39,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:26:39,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:39,199 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 3 states. [2018-11-18 09:26:39,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:39,296 INFO L93 Difference]: Finished difference Result 937 states and 1264 transitions. [2018-11-18 09:26:39,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:26:39,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-11-18 09:26:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:39,315 INFO L225 Difference]: With dead ends: 937 [2018-11-18 09:26:39,315 INFO L226 Difference]: Without dead ends: 607 [2018-11-18 09:26:39,320 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:39,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2018-11-18 09:26:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2018-11-18 09:26:39,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2018-11-18 09:26:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 806 transitions. [2018-11-18 09:26:39,399 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 806 transitions. Word has length 198 [2018-11-18 09:26:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:39,400 INFO L480 AbstractCegarLoop]: Abstraction has 604 states and 806 transitions. [2018-11-18 09:26:39,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:26:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 806 transitions. [2018-11-18 09:26:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-18 09:26:39,406 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:39,407 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:39,407 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:39,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash 716794688, now seen corresponding path program 1 times [2018-11-18 09:26:39,410 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:39,410 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:39,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:39,763 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2018-11-18 09:26:39,790 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:39,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:39,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:26:39,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:26:39,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:26:39,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:39,795 INFO L87 Difference]: Start difference. First operand 604 states and 806 transitions. Second operand 3 states. [2018-11-18 09:26:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:39,936 INFO L93 Difference]: Finished difference Result 1388 states and 1864 transitions. [2018-11-18 09:26:39,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:26:39,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2018-11-18 09:26:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:39,941 INFO L225 Difference]: With dead ends: 1388 [2018-11-18 09:26:39,941 INFO L226 Difference]: Without dead ends: 831 [2018-11-18 09:26:39,943 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2018-11-18 09:26:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 818. [2018-11-18 09:26:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2018-11-18 09:26:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1103 transitions. [2018-11-18 09:26:39,980 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1103 transitions. Word has length 221 [2018-11-18 09:26:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:39,981 INFO L480 AbstractCegarLoop]: Abstraction has 818 states and 1103 transitions. [2018-11-18 09:26:39,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:26:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1103 transitions. [2018-11-18 09:26:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-11-18 09:26:39,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:39,986 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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] [2018-11-18 09:26:39,986 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:39,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:39,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1877242797, now seen corresponding path program 1 times [2018-11-18 09:26:39,988 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:39,988 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:40,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:40,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2018-11-18 09:26:40,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:40,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:40,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:26:40,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:26:40,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:26:40,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:40,423 INFO L87 Difference]: Start difference. First operand 818 states and 1103 transitions. Second operand 3 states. [2018-11-18 09:26:42,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:42,543 INFO L93 Difference]: Finished difference Result 1590 states and 2146 transitions. [2018-11-18 09:26:42,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:26:42,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2018-11-18 09:26:42,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:42,548 INFO L225 Difference]: With dead ends: 1590 [2018-11-18 09:26:42,548 INFO L226 Difference]: Without dead ends: 825 [2018-11-18 09:26:42,551 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2018-11-18 09:26:42,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 819. [2018-11-18 09:26:42,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-11-18 09:26:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1102 transitions. [2018-11-18 09:26:42,582 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1102 transitions. Word has length 269 [2018-11-18 09:26:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:42,582 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 1102 transitions. [2018-11-18 09:26:42,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:26:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1102 transitions. [2018-11-18 09:26:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-18 09:26:42,586 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:42,587 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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] [2018-11-18 09:26:42,587 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:42,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:42,587 INFO L82 PathProgramCache]: Analyzing trace with hash -2084065339, now seen corresponding path program 1 times [2018-11-18 09:26:42,589 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:42,589 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:42,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:43,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2018-11-18 09:26:43,137 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:43,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:43,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:26:43,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:26:43,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:26:43,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:43,141 INFO L87 Difference]: Start difference. First operand 819 states and 1102 transitions. Second operand 3 states. [2018-11-18 09:26:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:45,332 INFO L93 Difference]: Finished difference Result 1825 states and 2484 transitions. [2018-11-18 09:26:45,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:26:45,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2018-11-18 09:26:45,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:45,338 INFO L225 Difference]: With dead ends: 1825 [2018-11-18 09:26:45,338 INFO L226 Difference]: Without dead ends: 1061 [2018-11-18 09:26:45,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:26:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2018-11-18 09:26:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1047. [2018-11-18 09:26:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2018-11-18 09:26:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1423 transitions. [2018-11-18 09:26:45,375 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1423 transitions. Word has length 271 [2018-11-18 09:26:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:45,375 INFO L480 AbstractCegarLoop]: Abstraction has 1047 states and 1423 transitions. [2018-11-18 09:26:45,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:26:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1423 transitions. [2018-11-18 09:26:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-11-18 09:26:45,379 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:45,380 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2018-11-18 09:26:45,380 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:45,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:45,380 INFO L82 PathProgramCache]: Analyzing trace with hash 512422745, now seen corresponding path program 1 times [2018-11-18 09:26:45,382 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:45,382 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:45,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:45,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2018-11-18 09:26:45,972 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:45,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:45,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:26:45,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:26:45,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:26:45,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:26:45,976 INFO L87 Difference]: Start difference. First operand 1047 states and 1423 transitions. Second operand 6 states. [2018-11-18 09:26:48,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:48,168 INFO L93 Difference]: Finished difference Result 2060 states and 2801 transitions. [2018-11-18 09:26:48,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:26:48,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 290 [2018-11-18 09:26:48,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:48,173 INFO L225 Difference]: With dead ends: 2060 [2018-11-18 09:26:48,173 INFO L226 Difference]: Without dead ends: 1052 [2018-11-18 09:26:48,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:26:48,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2018-11-18 09:26:48,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1013. [2018-11-18 09:26:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2018-11-18 09:26:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1364 transitions. [2018-11-18 09:26:48,197 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1364 transitions. Word has length 290 [2018-11-18 09:26:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:48,197 INFO L480 AbstractCegarLoop]: Abstraction has 1013 states and 1364 transitions. [2018-11-18 09:26:48,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:26:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1364 transitions. [2018-11-18 09:26:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-11-18 09:26:48,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:48,200 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:48,201 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:48,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash 251871664, now seen corresponding path program 1 times [2018-11-18 09:26:48,202 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:48,202 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:48,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:49,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2018-11-18 09:26:49,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:26:49,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:26:49,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:26:49,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:26:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:26:49,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:26:49,174 INFO L87 Difference]: Start difference. First operand 1013 states and 1364 transitions. Second operand 6 states. [2018-11-18 09:26:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:49,437 INFO L93 Difference]: Finished difference Result 2009 states and 2719 transitions. [2018-11-18 09:26:49,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:26:49,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2018-11-18 09:26:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:49,442 INFO L225 Difference]: With dead ends: 2009 [2018-11-18 09:26:49,442 INFO L226 Difference]: Without dead ends: 1014 [2018-11-18 09:26:49,445 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:26:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2018-11-18 09:26:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2018-11-18 09:26:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2018-11-18 09:26:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1365 transitions. [2018-11-18 09:26:49,477 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1365 transitions. Word has length 297 [2018-11-18 09:26:49,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:49,478 INFO L480 AbstractCegarLoop]: Abstraction has 1014 states and 1365 transitions. [2018-11-18 09:26:49,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:26:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1365 transitions. [2018-11-18 09:26:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-11-18 09:26:49,480 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:49,480 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2018-11-18 09:26:49,481 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:49,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:49,481 INFO L82 PathProgramCache]: Analyzing trace with hash -972085302, now seen corresponding path program 1 times [2018-11-18 09:26:49,483 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:49,483 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:49,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:50,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 196 proven. 1 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2018-11-18 09:26:50,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:26:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2018-11-18 09:26:50,989 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:26:50,989 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:26:50,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:51,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2018-11-18 09:26:51,389 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:26:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2018-11-18 09:26:51,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:26:51,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7, 5] total 16 [2018-11-18 09:26:51,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 09:26:51,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 09:26:51,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:26:51,640 INFO L87 Difference]: Start difference. First operand 1014 states and 1365 transitions. Second operand 16 states. [2018-11-18 09:26:57,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:57,026 INFO L93 Difference]: Finished difference Result 2016 states and 2732 transitions. [2018-11-18 09:26:57,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:26:57,027 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 311 [2018-11-18 09:26:57,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:57,030 INFO L225 Difference]: With dead ends: 2016 [2018-11-18 09:26:57,030 INFO L226 Difference]: Without dead ends: 1020 [2018-11-18 09:26:57,033 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1251 GetRequests, 1228 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2018-11-18 09:26:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2018-11-18 09:26:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2018-11-18 09:26:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2018-11-18 09:26:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1369 transitions. [2018-11-18 09:26:57,069 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1369 transitions. Word has length 311 [2018-11-18 09:26:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:57,069 INFO L480 AbstractCegarLoop]: Abstraction has 1020 states and 1369 transitions. [2018-11-18 09:26:57,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 09:26:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1369 transitions. [2018-11-18 09:26:57,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-11-18 09:26:57,071 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:57,071 INFO L375 BasicCegarLoop]: trace histogram [24, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:57,072 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:57,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:57,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1075350674, now seen corresponding path program 1 times [2018-11-18 09:26:57,073 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:57,073 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:57,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:58,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 251 proven. 3 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2018-11-18 09:26:58,275 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:26:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2018-11-18 09:26:58,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:26:58,554 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:26:58,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:26:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:26:58,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:26:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 419 proven. 3 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-11-18 09:26:58,967 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:26:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 15 proven. 153 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2018-11-18 09:26:59,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 09:26:59,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 15 [2018-11-18 09:26:59,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 09:26:59,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 09:26:59,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-11-18 09:26:59,221 INFO L87 Difference]: Start difference. First operand 1020 states and 1369 transitions. Second operand 15 states. [2018-11-18 09:26:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:26:59,606 INFO L93 Difference]: Finished difference Result 2026 states and 2732 transitions. [2018-11-18 09:26:59,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:26:59,609 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 321 [2018-11-18 09:26:59,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:26:59,613 INFO L225 Difference]: With dead ends: 2026 [2018-11-18 09:26:59,613 INFO L226 Difference]: Without dead ends: 1021 [2018-11-18 09:26:59,615 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1267 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:26:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2018-11-18 09:26:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2018-11-18 09:26:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2018-11-18 09:26:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1370 transitions. [2018-11-18 09:26:59,651 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1370 transitions. Word has length 321 [2018-11-18 09:26:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:26:59,651 INFO L480 AbstractCegarLoop]: Abstraction has 1021 states and 1370 transitions. [2018-11-18 09:26:59,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 09:26:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1370 transitions. [2018-11-18 09:26:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-11-18 09:26:59,653 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:26:59,654 INFO L375 BasicCegarLoop]: trace histogram [36, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:26:59,654 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:26:59,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:26:59,654 INFO L82 PathProgramCache]: Analyzing trace with hash 81421102, now seen corresponding path program 2 times [2018-11-18 09:26:59,655 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:26:59,655 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:26:59,682 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 09:27:08,323 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 09:27:08,323 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:27:08,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:27:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 328 proven. 6 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-11-18 09:27:08,729 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:27:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2018-11-18 09:27:09,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:27:09,066 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:27:09,078 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 09:27:21,398 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 09:27:21,398 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:27:21,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:27:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 566 proven. 6 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2018-11-18 09:27:21,515 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:27:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 22 proven. 226 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2018-11-18 09:27:22,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 09:27:22,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 24 [2018-11-18 09:27:22,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 09:27:22,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 09:27:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-11-18 09:27:22,015 INFO L87 Difference]: Start difference. First operand 1021 states and 1370 transitions. Second operand 24 states. [2018-11-18 09:27:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:27:22,819 INFO L93 Difference]: Finished difference Result 2028 states and 2734 transitions. [2018-11-18 09:27:22,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 09:27:22,821 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 333 [2018-11-18 09:27:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:27:22,823 INFO L225 Difference]: With dead ends: 2028 [2018-11-18 09:27:22,824 INFO L226 Difference]: Without dead ends: 1022 [2018-11-18 09:27:22,825 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1305 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2018-11-18 09:27:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2018-11-18 09:27:22,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1022. [2018-11-18 09:27:22,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2018-11-18 09:27:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1371 transitions. [2018-11-18 09:27:22,846 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1371 transitions. Word has length 333 [2018-11-18 09:27:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:27:22,846 INFO L480 AbstractCegarLoop]: Abstraction has 1022 states and 1371 transitions. [2018-11-18 09:27:22,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 09:27:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1371 transitions. [2018-11-18 09:27:22,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-11-18 09:27:22,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:27:22,848 INFO L375 BasicCegarLoop]: trace histogram [48, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:27:22,848 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:27:22,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:22,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1275460078, now seen corresponding path program 3 times [2018-11-18 09:27:22,850 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:27:22,850 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:27:22,874 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 09:28:37,856 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 09:28:37,856 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:28:38,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 405 proven. 10 refuted. 0 times theorem prover too weak. 2013 trivial. 0 not checked. [2018-11-18 09:28:38,200 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 341 proven. 10 refuted. 0 times theorem prover too weak. 2077 trivial. 0 not checked. [2018-11-18 09:28:38,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:38,624 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:28:38,639 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 09:29:26,928 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 09:29:26,928 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:29:26,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:29:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 405 proven. 10 refuted. 0 times theorem prover too weak. 2013 trivial. 0 not checked. [2018-11-18 09:29:27,063 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:29:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 341 proven. 10 refuted. 0 times theorem prover too weak. 2077 trivial. 0 not checked. [2018-11-18 09:29:27,624 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 09:29:27,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 26 [2018-11-18 09:29:27,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 09:29:27,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 09:29:27,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2018-11-18 09:29:27,625 INFO L87 Difference]: Start difference. First operand 1022 states and 1371 transitions. Second operand 26 states. [2018-11-18 09:29:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:29:28,663 INFO L93 Difference]: Finished difference Result 2033 states and 2741 transitions. [2018-11-18 09:29:28,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 09:29:28,664 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 345 [2018-11-18 09:29:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:29:28,668 INFO L225 Difference]: With dead ends: 2033 [2018-11-18 09:29:28,668 INFO L226 Difference]: Without dead ends: 1031 [2018-11-18 09:29:28,671 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1384 GetRequests, 1351 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2018-11-18 09:29:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2018-11-18 09:29:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2018-11-18 09:29:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2018-11-18 09:29:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1380 transitions. [2018-11-18 09:29:28,702 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1380 transitions. Word has length 345 [2018-11-18 09:29:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:29:28,702 INFO L480 AbstractCegarLoop]: Abstraction has 1031 states and 1380 transitions. [2018-11-18 09:29:28,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-18 09:29:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1380 transitions. [2018-11-18 09:29:28,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-11-18 09:29:28,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:29:28,705 INFO L375 BasicCegarLoop]: trace histogram [55, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:29:28,705 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:29:28,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:29:28,705 INFO L82 PathProgramCache]: Analyzing trace with hash -956655205, now seen corresponding path program 4 times [2018-11-18 09:29:28,706 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 09:29:28,706 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e9b7cac-0855-4068-9e3a-d2a8adffbf2c/bin-2019/utaipan/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:29:28,729 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 09:29:29,048 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 09:29:29,049 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2018-11-18 09:29:29,051 INFO L168 Benchmark]: Toolchain (without parser) took 175764.83 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 772.3 MB). Free memory was 943.3 MB in the beginning and 1.4 GB in the end (delta: -488.7 MB). Peak memory consumption was 283.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:29,053 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. [2018-11-18 09:29:29,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1542.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 937.9 MB in the beginning and 829.5 MB in the end (delta: 108.4 MB). Peak memory consumption was 317.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:29,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.92 ms. Allocated memory is still 1.2 GB. Free memory is still 829.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:29:29,054 INFO L168 Benchmark]: Boogie Preprocessor took 81.23 ms. Allocated memory is still 1.2 GB. Free memory was 829.5 MB in the beginning and 820.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:29,054 INFO L168 Benchmark]: RCFGBuilder took 3699.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 36.7 MB). Free memory was 820.7 MB in the beginning and 827.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:29,054 INFO L168 Benchmark]: TraceAbstraction took 170396.49 ms. Allocated memory was 1.3 GB in the beginning and 1.8 GB in the end (delta: 547.9 MB). Free memory was 827.2 MB in the beginning and 1.4 GB in the end (delta: -604.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:29:29,057 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 1542.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 937.9 MB in the beginning and 829.5 MB in the end (delta: 108.4 MB). Peak memory consumption was 317.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.92 ms. Allocated memory is still 1.2 GB. Free memory is still 829.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.23 ms. Allocated memory is still 1.2 GB. Free memory was 829.5 MB in the beginning and 820.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3699.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 36.7 MB). Free memory was 820.7 MB in the beginning and 827.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 170396.49 ms. Allocated memory was 1.3 GB in the beginning and 1.8 GB in the end (delta: 547.9 MB). Free memory was 827.2 MB in the beginning and 1.4 GB in the end (delta: -604.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...