./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c3fbe1c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 32bit --witnessprinter.graph.data.programhash 49da897df5dcdfc1bc615bb8c40422792fce477f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 14:57:27,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 14:57:27,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 14:57:27,639 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 14:57:27,640 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 14:57:27,641 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 14:57:27,643 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 14:57:27,646 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 14:57:27,650 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 14:57:27,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 14:57:27,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 14:57:27,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 14:57:27,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 14:57:27,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 14:57:27,667 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 14:57:27,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 14:57:27,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 14:57:27,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 14:57:27,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 14:57:27,674 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 14:57:27,676 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 14:57:27,677 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 14:57:27,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 14:57:27,680 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 14:57:27,681 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 14:57:27,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 14:57:27,683 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 14:57:27,684 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 14:57:27,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 14:57:27,687 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 14:57:27,687 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 14:57:27,688 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 14:57:27,688 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 14:57:27,688 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 14:57:27,690 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 14:57:27,690 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 14:57:27,691 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 14:57:27,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 14:57:27,712 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 14:57:27,713 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 14:57:27,713 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 14:57:27,714 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 14:57:27,714 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 14:57:27,715 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 14:57:27,715 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 14:57:27,715 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 14:57:27,715 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 14:57:27,715 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 14:57:27,717 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 14:57:27,717 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 14:57:27,717 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 14:57:27,717 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 14:57:27,718 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 14:57:27,719 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 14:57:27,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 14:57:27,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 14:57:27,720 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 14:57:27,720 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 14:57:27,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 14:57:27,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 14:57:27,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 14:57:27,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 14:57:27,721 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 14:57:27,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 14:57:27,723 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 14:57:27,723 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 14:57:27,723 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 -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49da897df5dcdfc1bc615bb8c40422792fce477f [2018-10-22 14:57:27,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 14:57:27,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 14:57:27,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 14:57:27,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 14:57:27,801 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 14:57:27,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-22 14:57:27,864 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a13ef38d/205d782df8f14774a53182f6d5f3432f/FLAG84f785f9e [2018-10-22 14:57:28,385 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 14:57:28,386 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-22 14:57:28,395 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a13ef38d/205d782df8f14774a53182f6d5f3432f/FLAG84f785f9e [2018-10-22 14:57:28,408 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2a13ef38d/205d782df8f14774a53182f6d5f3432f [2018-10-22 14:57:28,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 14:57:28,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 14:57:28,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 14:57:28,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 14:57:28,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 14:57:28,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d1fbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28, skipping insertion in model container [2018-10-22 14:57:28,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 14:57:28,468 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 14:57:28,714 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 14:57:28,728 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 14:57:28,762 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 14:57:28,784 INFO L193 MainTranslator]: Completed translation [2018-10-22 14:57:28,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28 WrapperNode [2018-10-22 14:57:28,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 14:57:28,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 14:57:28,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 14:57:28,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 14:57:28,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 14:57:28,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 14:57:28,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 14:57:28,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 14:57:28,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... [2018-10-22 14:57:28,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 14:57:28,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 14:57:28,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 14:57:28,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 14:57:28,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-22 14:57:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 14:57:29,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 14:57:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-10-22 14:57:29,024 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-10-22 14:57:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 14:57:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 14:57:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 14:57:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 14:57:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 14:57:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 14:57:29,671 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 14:57:29,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:57:29 BoogieIcfgContainer [2018-10-22 14:57:29,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 14:57:29,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 14:57:29,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 14:57:29,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 14:57:29,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:57:28" (1/3) ... [2018-10-22 14:57:29,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a849a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:57:29, skipping insertion in model container [2018-10-22 14:57:29,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:57:28" (2/3) ... [2018-10-22 14:57:29,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a849a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:57:29, skipping insertion in model container [2018-10-22 14:57:29,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:57:29" (3/3) ... [2018-10-22 14:57:29,682 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-22 14:57:29,693 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 14:57:29,702 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 14:57:29,719 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 14:57:29,756 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 14:57:29,757 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 14:57:29,757 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 14:57:29,757 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 14:57:29,757 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 14:57:29,757 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 14:57:29,757 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 14:57:29,758 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 14:57:29,758 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 14:57:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-10-22 14:57:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-22 14:57:29,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:29,784 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 14:57:29,787 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:29,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:29,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1430162208, now seen corresponding path program 1 times [2018-10-22 14:57:29,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:29,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:29,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:29,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:29,847 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:29,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:29,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 14:57:29,986 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:29,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 14:57:30,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 14:57:30,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 14:57:30,012 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-10-22 14:57:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:30,047 INFO L93 Difference]: Finished difference Result 87 states and 117 transitions. [2018-10-22 14:57:30,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 14:57:30,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-10-22 14:57:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:30,062 INFO L225 Difference]: With dead ends: 87 [2018-10-22 14:57:30,064 INFO L226 Difference]: Without dead ends: 40 [2018-10-22 14:57:30,069 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 14:57:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-22 14:57:30,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-10-22 14:57:30,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-22 14:57:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-10-22 14:57:30,123 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2018-10-22 14:57:30,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:30,124 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-10-22 14:57:30,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 14:57:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-10-22 14:57:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-22 14:57:30,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:30,126 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 14:57:30,127 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:30,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:30,127 INFO L82 PathProgramCache]: Analyzing trace with hash 681592423, now seen corresponding path program 1 times [2018-10-22 14:57:30,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:30,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:30,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:30,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:30,131 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:30,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:30,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 14:57:30,315 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:30,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 14:57:30,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 14:57:30,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 14:57:30,320 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 3 states. [2018-10-22 14:57:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:30,421 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2018-10-22 14:57:30,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 14:57:30,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-10-22 14:57:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:30,424 INFO L225 Difference]: With dead ends: 72 [2018-10-22 14:57:30,424 INFO L226 Difference]: Without dead ends: 41 [2018-10-22 14:57:30,426 INFO L605 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 [2018-10-22 14:57:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-22 14:57:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-10-22 14:57:30,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-22 14:57:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-10-22 14:57:30,438 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 30 [2018-10-22 14:57:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:30,439 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-10-22 14:57:30,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 14:57:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-10-22 14:57:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-22 14:57:30,442 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:30,442 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 14:57:30,442 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:30,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash -906755479, now seen corresponding path program 1 times [2018-10-22 14:57:30,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:30,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:30,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:30,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:30,445 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:30,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:30,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 14:57:30,652 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:30,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 14:57:30,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 14:57:30,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-22 14:57:30,655 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 5 states. [2018-10-22 14:57:31,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:31,031 INFO L93 Difference]: Finished difference Result 100 states and 129 transitions. [2018-10-22 14:57:31,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 14:57:31,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-22 14:57:31,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:31,036 INFO L225 Difference]: With dead ends: 100 [2018-10-22 14:57:31,036 INFO L226 Difference]: Without dead ends: 68 [2018-10-22 14:57:31,037 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-22 14:57:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-22 14:57:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2018-10-22 14:57:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-22 14:57:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2018-10-22 14:57:31,065 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 30 [2018-10-22 14:57:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:31,066 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2018-10-22 14:57:31,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 14:57:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2018-10-22 14:57:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-22 14:57:31,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:31,069 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 14:57:31,069 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:31,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:31,070 INFO L82 PathProgramCache]: Analyzing trace with hash 925510185, now seen corresponding path program 1 times [2018-10-22 14:57:31,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:31,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:31,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:31,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:31,074 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:31,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:31,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-22 14:57:31,260 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:31,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 14:57:31,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 14:57:31,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 14:57:31,263 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 6 states. [2018-10-22 14:57:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:31,606 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2018-10-22 14:57:31,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 14:57:31,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-10-22 14:57:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:31,608 INFO L225 Difference]: With dead ends: 158 [2018-10-22 14:57:31,609 INFO L226 Difference]: Without dead ends: 89 [2018-10-22 14:57:31,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-22 14:57:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-10-22 14:57:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 58. [2018-10-22 14:57:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-22 14:57:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2018-10-22 14:57:31,620 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 30 [2018-10-22 14:57:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:31,620 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2018-10-22 14:57:31,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 14:57:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2018-10-22 14:57:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-22 14:57:31,622 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:31,622 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 14:57:31,622 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:31,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:31,623 INFO L82 PathProgramCache]: Analyzing trace with hash -85607065, now seen corresponding path program 1 times [2018-10-22 14:57:31,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:31,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:31,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:31,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:31,624 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:31,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:31,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 14:57:31,799 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:31,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 14:57:31,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 14:57:31,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-22 14:57:31,800 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 5 states. [2018-10-22 14:57:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:32,176 INFO L93 Difference]: Finished difference Result 136 states and 173 transitions. [2018-10-22 14:57:32,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 14:57:32,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-22 14:57:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:32,180 INFO L225 Difference]: With dead ends: 136 [2018-10-22 14:57:32,180 INFO L226 Difference]: Without dead ends: 69 [2018-10-22 14:57:32,181 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-22 14:57:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-10-22 14:57:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2018-10-22 14:57:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-22 14:57:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2018-10-22 14:57:32,189 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 30 [2018-10-22 14:57:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:32,189 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2018-10-22 14:57:32,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 14:57:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2018-10-22 14:57:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-22 14:57:32,191 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:32,191 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:32,191 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:32,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:32,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1176159658, now seen corresponding path program 1 times [2018-10-22 14:57:32,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:32,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:32,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:32,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:32,196 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:32,573 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-22 14:57:32,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 14:57:32,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:32,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-22 14:57:32,638 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:32,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 14:57:32,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 14:57:32,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-22 14:57:32,639 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 7 states. [2018-10-22 14:57:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:33,042 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2018-10-22 14:57:33,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 14:57:33,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-10-22 14:57:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:33,046 INFO L225 Difference]: With dead ends: 160 [2018-10-22 14:57:33,046 INFO L226 Difference]: Without dead ends: 109 [2018-10-22 14:57:33,047 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-22 14:57:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-22 14:57:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2018-10-22 14:57:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-22 14:57:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2018-10-22 14:57:33,058 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 35 [2018-10-22 14:57:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:33,058 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2018-10-22 14:57:33,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 14:57:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2018-10-22 14:57:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-22 14:57:33,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:33,060 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:33,060 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:33,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:33,060 INFO L82 PathProgramCache]: Analyzing trace with hash 165042408, now seen corresponding path program 1 times [2018-10-22 14:57:33,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:33,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:33,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,062 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 14:57:33,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:33,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-22 14:57:33,200 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:33,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 14:57:33,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 14:57:33,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-22 14:57:33,202 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 7 states. [2018-10-22 14:57:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:33,774 INFO L93 Difference]: Finished difference Result 112 states and 142 transitions. [2018-10-22 14:57:33,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 14:57:33,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-10-22 14:57:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:33,777 INFO L225 Difference]: With dead ends: 112 [2018-10-22 14:57:33,777 INFO L226 Difference]: Without dead ends: 110 [2018-10-22 14:57:33,777 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-22 14:57:33,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-22 14:57:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99. [2018-10-22 14:57:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-10-22 14:57:33,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2018-10-22 14:57:33,790 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 35 [2018-10-22 14:57:33,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:33,790 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2018-10-22 14:57:33,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 14:57:33,790 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2018-10-22 14:57:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-22 14:57:33,792 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:33,792 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:33,792 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:33,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:33,792 INFO L82 PathProgramCache]: Analyzing trace with hash -52520849, now seen corresponding path program 1 times [2018-10-22 14:57:33,793 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:33,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:33,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,794 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 14:57:33,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 14:57:33,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 14:57:33,867 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 14:57:33,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 14:57:33,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 14:57:33,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 14:57:33,869 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand 4 states. [2018-10-22 14:57:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:33,906 INFO L93 Difference]: Finished difference Result 159 states and 203 transitions. [2018-10-22 14:57:33,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 14:57:33,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-10-22 14:57:33,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:33,910 INFO L225 Difference]: With dead ends: 159 [2018-10-22 14:57:33,910 INFO L226 Difference]: Without dead ends: 109 [2018-10-22 14:57:33,911 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 14:57:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-22 14:57:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-10-22 14:57:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-22 14:57:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2018-10-22 14:57:33,921 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 37 [2018-10-22 14:57:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:33,922 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2018-10-22 14:57:33,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 14:57:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2018-10-22 14:57:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-22 14:57:33,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:33,924 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:33,924 INFO L424 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:33,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:33,924 INFO L82 PathProgramCache]: Analyzing trace with hash 648543729, now seen corresponding path program 1 times [2018-10-22 14:57:33,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:33,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:33,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:33,926 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:34,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:34,060 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 14:57:34,061 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-10-22 14:57:34,063 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [48], [53], [55], [61], [67], [70], [76], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-22 14:57:34,124 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 14:57:34,124 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 14:57:47,339 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 14:57:47,342 INFO L272 AbstractInterpreter]: Visited 36 different actions 960 times. Merged at 23 different actions 793 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 53 variables. [2018-10-22 14:57:47,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:47,388 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 14:57:47,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:47,389 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 14:57:47,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:47,401 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:57:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:47,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:57:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:47,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:57:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:48,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:48,020 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (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 --tlimit-per=12000 [2018-10-22 14:57:48,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:48,049 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:57:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:48,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:57:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:48,144 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:57:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:48,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 14:57:48,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 8 [2018-10-22 14:57:48,439 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 14:57:48,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 14:57:48,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 14:57:48,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-22 14:57:48,441 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand 8 states. [2018-10-22 14:57:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:49,895 INFO L93 Difference]: Finished difference Result 228 states and 285 transitions. [2018-10-22 14:57:49,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 14:57:49,896 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-10-22 14:57:49,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:49,898 INFO L225 Difference]: With dead ends: 228 [2018-10-22 14:57:49,898 INFO L226 Difference]: Without dead ends: 139 [2018-10-22 14:57:49,900 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-22 14:57:49,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-22 14:57:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 110. [2018-10-22 14:57:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-22 14:57:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2018-10-22 14:57:49,919 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 37 [2018-10-22 14:57:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:49,919 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2018-10-22 14:57:49,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 14:57:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2018-10-22 14:57:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-22 14:57:49,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:49,924 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:49,924 INFO L424 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:49,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:49,925 INFO L82 PathProgramCache]: Analyzing trace with hash 408592208, now seen corresponding path program 2 times [2018-10-22 14:57:49,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:49,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:49,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:57:49,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:49,926 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:50,879 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:50,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:50,880 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 14:57:50,880 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-22 14:57:50,880 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-22 14:57:50,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:50,880 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 14:57:50,896 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 14:57:50,896 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-10-22 14:57:50,956 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 14:57:50,956 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 14:57:50,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:57:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:52,363 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:57:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:52,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:52,701 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (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 --tlimit-per=12000 [2018-10-22 14:57:52,719 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 14:57:52,720 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-10-22 14:57:52,863 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 14:57:52,864 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 14:57:52,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:57:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:52,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:57:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:53,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 14:57:53,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 9, 8] total 19 [2018-10-22 14:57:53,092 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 14:57:53,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-22 14:57:53,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-22 14:57:53,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2018-10-22 14:57:53,093 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand 16 states. [2018-10-22 14:57:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:57:53,703 INFO L93 Difference]: Finished difference Result 236 states and 291 transitions. [2018-10-22 14:57:53,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-22 14:57:53,703 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-22 14:57:53,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:57:53,706 INFO L225 Difference]: With dead ends: 236 [2018-10-22 14:57:53,706 INFO L226 Difference]: Without dead ends: 183 [2018-10-22 14:57:53,707 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 150 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2018-10-22 14:57:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-10-22 14:57:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 137. [2018-10-22 14:57:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-22 14:57:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2018-10-22 14:57:53,716 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 42 [2018-10-22 14:57:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:57:53,717 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2018-10-22 14:57:53,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-22 14:57:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2018-10-22 14:57:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-22 14:57:53,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:57:53,719 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:57:53,719 INFO L424 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:57:53,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:57:53,720 INFO L82 PathProgramCache]: Analyzing trace with hash 465850510, now seen corresponding path program 1 times [2018-10-22 14:57:53,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:57:53,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:53,721 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 14:57:53,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:57:53,721 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:57:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:57:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:57:54,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:57:54,124 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 14:57:54,124 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-10-22 14:57:54,124 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [48], [53], [55], [61], [67], [70], [78], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-22 14:57:54,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 14:57:54,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 14:58:04,581 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 14:58:04,582 INFO L272 AbstractInterpreter]: Visited 36 different actions 964 times. Merged at 23 different actions 794 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 52 variables. [2018-10-22 14:58:04,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:58:04,591 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 14:58:04,591 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:58:04,591 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 14:58:04,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:04,602 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:58:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:58:04,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:58:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:05,315 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:58:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:05,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:58:05,502 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (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 --tlimit-per=12000 [2018-10-22 14:58:05,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:05,523 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:58:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:58:05,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:58:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:05,657 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:58:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:05,706 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 14:58:05,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9, 10, 9] total 21 [2018-10-22 14:58:05,707 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 14:58:05,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-22 14:58:05,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-22 14:58:05,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-10-22 14:58:05,711 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand 16 states. [2018-10-22 14:58:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:58:06,221 INFO L93 Difference]: Finished difference Result 192 states and 229 transitions. [2018-10-22 14:58:06,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-22 14:58:06,223 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-22 14:58:06,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:58:06,225 INFO L225 Difference]: With dead ends: 192 [2018-10-22 14:58:06,225 INFO L226 Difference]: Without dead ends: 190 [2018-10-22 14:58:06,227 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 149 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-10-22 14:58:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-10-22 14:58:06,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2018-10-22 14:58:06,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-22 14:58:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2018-10-22 14:58:06,242 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 42 [2018-10-22 14:58:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:58:06,242 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2018-10-22 14:58:06,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-22 14:58:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2018-10-22 14:58:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-22 14:58:06,247 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:58:06,247 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:58:06,248 INFO L424 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:58:06,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:58:06,248 INFO L82 PathProgramCache]: Analyzing trace with hash -612476146, now seen corresponding path program 1 times [2018-10-22 14:58:06,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:58:06,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:58:06,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:06,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:58:06,252 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:58:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:58:07,098 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:07,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:58:07,099 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 14:58:07,100 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-10-22 14:58:07,100 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [48], [53], [55], [61], [67], [70], [76], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-22 14:58:07,103 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 14:58:07,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 14:58:16,936 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 14:58:16,936 INFO L272 AbstractInterpreter]: Visited 36 different actions 964 times. Merged at 23 different actions 794 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 52 variables. [2018-10-22 14:58:16,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:58:16,944 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 14:58:16,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:58:16,945 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 14:58:16,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:16,958 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:58:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:58:17,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:58:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:17,190 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:58:17,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:17,343 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 14:58:17,343 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-22 14:58:17,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:17,364 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 14:58:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 14:58:17,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 14:58:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:17,511 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 14:58:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 14:58:17,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 14:58:17,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10] total 24 [2018-10-22 14:58:17,555 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 14:58:17,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-22 14:58:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-22 14:58:17,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2018-10-22 14:58:17,558 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand 16 states. [2018-10-22 14:58:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 14:58:18,175 INFO L93 Difference]: Finished difference Result 211 states and 255 transitions. [2018-10-22 14:58:18,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-22 14:58:18,177 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-22 14:58:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 14:58:18,181 INFO L225 Difference]: With dead ends: 211 [2018-10-22 14:58:18,182 INFO L226 Difference]: Without dead ends: 209 [2018-10-22 14:58:18,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2018-10-22 14:58:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-10-22 14:58:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 158. [2018-10-22 14:58:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-22 14:58:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 198 transitions. [2018-10-22 14:58:18,199 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 198 transitions. Word has length 42 [2018-10-22 14:58:18,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 14:58:18,201 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 198 transitions. [2018-10-22 14:58:18,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-22 14:58:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 198 transitions. [2018-10-22 14:58:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-22 14:58:18,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 14:58:18,205 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-22 14:58:18,205 INFO L424 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 14:58:18,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 14:58:18,207 INFO L82 PathProgramCache]: Analyzing trace with hash -555217844, now seen corresponding path program 1 times [2018-10-22 14:58:18,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 14:58:18,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:58:18,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 14:58:18,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 14:58:18,211 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 14:58:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 14:58:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 14:58:18,304 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-22 14:58:18,330 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,333 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,334 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,334 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,334 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,335 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,337 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,337 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,338 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,339 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,341 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,341 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,343 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,345 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,346 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,347 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,348 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,349 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,351 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,352 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,353 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,353 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,355 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,356 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,357 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,357 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,364 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,366 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,366 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,368 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,369 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,370 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,370 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,371 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,375 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,375 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,376 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,379 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,380 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,381 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,382 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:58:18 BoogieIcfgContainer [2018-10-22 14:58:18,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 14:58:18,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 14:58:18,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 14:58:18,435 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 14:58:18,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:57:29" (3/4) ... [2018-10-22 14:58:18,443 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-22 14:58:18,446 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,448 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,453 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,453 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,453 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,453 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,453 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,454 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,454 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,454 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,454 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,454 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,455 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,459 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,460 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,461 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,462 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,463 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,464 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,471 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,471 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,471 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,472 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,473 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,473 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,473 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 14:58:18,543 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 14:58:18,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 14:58:18,544 INFO L168 Benchmark]: Toolchain (without parser) took 50130.65 ms. Allocated memory was 1.0 GB in the beginning and 4.4 GB in the end (delta: 3.4 GB). Free memory was 953.2 MB in the beginning and 1.8 GB in the end (delta: -808.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-10-22 14:58:18,546 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-22 14:58:18,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.69 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 14:58:18,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.39 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 14:58:18,547 INFO L168 Benchmark]: Boogie Preprocessor took 35.05 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 14:58:18,547 INFO L168 Benchmark]: RCFGBuilder took 796.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-10-22 14:58:18,550 INFO L168 Benchmark]: TraceAbstraction took 48761.16 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.2 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -645.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. [2018-10-22 14:58:18,550 INFO L168 Benchmark]: Witness Printer took 108.12 ms. Allocated memory is still 4.4 GB. Free memory is still 1.8 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 14:58:18,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 369.69 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.39 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.05 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 796.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 48761.16 ms. Allocated memory was 1.2 GB in the beginning and 4.4 GB in the end (delta: 3.2 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -645.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 11.5 GB. * Witness Printer took 108.12 ms. Allocated memory is still 4.4 GB. Free memory is still 1.8 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L75] CALL char A [2 + 2 + 4 +1]; [L75] RET char A [2 + 2 + 4 +1]; [L76] CALL A[2 + 2 + 4] = 0 [L76] RET A[2 + 2 + 4] = 0 [L77] CALL parse_expression_list (A) [L49] int start=0, i=-1, j=-1; [L50] CALL char str2[2]; [L50] RET char str2[2]; [L51] COND FALSE !(!str) [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L70] CALL, EXPR str[i] [L70] RET, EXPR str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L70] CALL, EXPR str[i] [L70] RET, EXPR str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L56] CALL, EXPR str[start] [L56] RET, EXPR str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] CALL, EXPR str[start] [L56] RET, EXPR str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] COND FALSE !(str[start] == '"') [L58] j = i-1 [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] CALL, EXPR str[j] [L59] RET, EXPR str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] CALL, EXPR str[j] [L59] RET, EXPR str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] (0 < j) && (str[j] == '"') [L60] CALL, EXPR str[j] [L60] RET, EXPR str[j] [L60] (0 < j) && (str[j] == '"') [L60] COND FALSE !((0 < j) && (str[j] == '"')) [L61] COND TRUE start<=j [L62] FCALL r_strncpy(str2, str+start, j-start+1) [L63] CALL __VERIFIER_assert(j - start + 1 < 2) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 48.6s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 574 SDtfs, 1003 SDslu, 2020 SDs, 0 SdLazy, 1406 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 756 GetRequests, 610 SyntacticMatches, 25 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.6s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 288 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1038 ConstructedInterpolants, 0 QuantifiedInterpolants, 152089 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2010 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 28 InterpolantComputations, 8 PerfectInterpolantSequences, 6/151 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...