./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af ...................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 06:55:58,805 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:55:58,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:55:58,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:55:58,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:55:58,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:55:58,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:55:58,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:55:58,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:55:58,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:55:58,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:55:58,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:55:58,820 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:55:58,821 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:55:58,822 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:55:58,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:55:58,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:55:58,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:55:58,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:55:58,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:55:58,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:55:58,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:55:58,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:55:58,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:55:58,830 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:55:58,831 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:55:58,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:55:58,832 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:55:58,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:55:58,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:55:58,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:55:58,834 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:55:58,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:55:58,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:55:58,835 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:55:58,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:55:58,836 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 06:55:58,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:55:58,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:55:58,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:55:58,847 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:55:58,847 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:55:58,847 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:55:58,847 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:55:58,848 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:55:58,848 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:55:58,848 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:55:58,848 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:55:58,848 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:55:58,848 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:55:58,849 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:55:58,850 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:55:58,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:55:58,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:55:58,851 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:55:58,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:55:58,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:55:58,851 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:55:58,851 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af [2018-11-10 06:55:58,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:55:58,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:55:58,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:55:58,885 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:55:58,885 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:55:58,886 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-10 06:55:58,924 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/data/d643af131/822c4b6dc1544cdb933234b95c441771/FLAGfc885342a [2018-11-10 06:55:59,264 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:55:59,265 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-10 06:55:59,271 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/data/d643af131/822c4b6dc1544cdb933234b95c441771/FLAGfc885342a [2018-11-10 06:55:59,284 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/data/d643af131/822c4b6dc1544cdb933234b95c441771 [2018-11-10 06:55:59,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:55:59,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:55:59,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:55:59,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:55:59,293 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:55:59,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59, skipping insertion in model container [2018-11-10 06:55:59,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:55:59,322 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:55:59,425 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:55:59,429 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:55:59,441 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:55:59,451 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:55:59,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59 WrapperNode [2018-11-10 06:55:59,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:55:59,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:55:59,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:55:59,452 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:55:59,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:55:59,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:55:59,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:55:59,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:55:59,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... [2018-11-10 06:55:59,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:55:59,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:55:59,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:55:59,478 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:55:59,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:55:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:55:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:55:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:55:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:55:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:55:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:55:59,628 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:55:59,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:55:59 BoogieIcfgContainer [2018-11-10 06:55:59,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:55:59,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:55:59,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:55:59,631 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:55:59,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:55:59" (1/3) ... [2018-11-10 06:55:59,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5ff793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:55:59, skipping insertion in model container [2018-11-10 06:55:59,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:55:59" (2/3) ... [2018-11-10 06:55:59,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5ff793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:55:59, skipping insertion in model container [2018-11-10 06:55:59,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:55:59" (3/3) ... [2018-11-10 06:55:59,634 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion_false-unreach-call_true-termination.c [2018-11-10 06:55:59,643 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:55:59,649 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:55:59,659 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:55:59,684 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:55:59,684 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:55:59,685 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:55:59,685 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:55:59,685 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:55:59,685 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:55:59,685 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:55:59,685 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:55:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-10 06:55:59,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 06:55:59,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:55:59,702 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:55:59,704 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:55:59,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:55:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2018-11-10 06:55:59,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:55:59,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:55:59,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:55:59,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:55:59,741 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:55:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:55:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:55:59,789 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 06:55:59,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:55:59 BoogieIcfgContainer [2018-11-10 06:55:59,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:55:59,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:55:59,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:55:59,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:55:59,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:55:59" (3/4) ... [2018-11-10 06:55:59,807 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 06:55:59,835 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_82643cc9-3697-42d8-a6f9-00b737a94336/bin-2019/utaipan/witness.graphml [2018-11-10 06:55:59,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:55:59,836 INFO L168 Benchmark]: Toolchain (without parser) took 547.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:55:59,837 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:55:59,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:55:59,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.98 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:55:59,838 INFO L168 Benchmark]: Boogie Preprocessor took 11.89 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:55:59,838 INFO L168 Benchmark]: RCFGBuilder took 150.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 06:55:59,839 INFO L168 Benchmark]: TraceAbstraction took 175.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:55:59,839 INFO L168 Benchmark]: Witness Printer took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:55:59,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 13.98 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.89 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 175.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L7] COND TRUE plus_one < minus_one VAL [minus_one=-1, plus_one=1] [L12] __VERIFIER_error() VAL [minus_one=-1, plus_one=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...