./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_3-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/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 be63c976650441aaee3d3a743a32b09c44df32d0 ................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 11:24:04,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:04,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:04,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:04,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:04,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:04,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:04,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:04,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:04,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:04,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:04,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:04,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:04,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:04,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:04,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:04,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:04,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:04,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:04,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:04,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:04,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:04,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:04,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:04,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:04,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:04,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:04,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:04,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:04,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:04,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:04,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:04,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:04,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:04,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:04,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:04,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:04,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:04,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:04,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:04,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:04,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:04,823 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:04,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:04,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:04,833 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:04,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:04,833 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:04,834 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:04,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:04,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:04,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:04,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:04,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:04,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:04,839 INFO L138 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_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/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 -> be63c976650441aaee3d3a743a32b09c44df32d0 [2019-10-22 11:24:04,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:04,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:04,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:04,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:04,886 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:04,887 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/../../sv-benchmarks/c/loop-acceleration/simple_3-1.c [2019-10-22 11:24:04,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/data/88bc52662/dcbebcd6fe6d40049558e0abd05979da/FLAG6984d475d [2019-10-22 11:24:05,324 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:05,325 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/sv-benchmarks/c/loop-acceleration/simple_3-1.c [2019-10-22 11:24:05,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/data/88bc52662/dcbebcd6fe6d40049558e0abd05979da/FLAG6984d475d [2019-10-22 11:24:05,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/data/88bc52662/dcbebcd6fe6d40049558e0abd05979da [2019-10-22 11:24:05,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:05,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:05,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:05,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:05,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:05,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b554028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05, skipping insertion in model container [2019-10-22 11:24:05,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:05,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:05,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:05,547 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:05,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:05,660 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:05,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05 WrapperNode [2019-10-22 11:24:05,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:05,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:05,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:05,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:05,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:05,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:05,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:05,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:05,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... [2019-10-22 11:24:05,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:05,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:05,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:05,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:05,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/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 [2019-10-22 11:24:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:05,915 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:05,915 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:24:05,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05 BoogieIcfgContainer [2019-10-22 11:24:05,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:05,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:05,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:05,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:05,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:05" (1/3) ... [2019-10-22 11:24:05,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:05, skipping insertion in model container [2019-10-22 11:24:05,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:05" (2/3) ... [2019-10-22 11:24:05,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:05, skipping insertion in model container [2019-10-22 11:24:05,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05" (3/3) ... [2019-10-22 11:24:05,925 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2019-10-22 11:24:05,934 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:05,941 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:05,953 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:05,983 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:05,984 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:05,984 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:05,984 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:05,984 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:05,984 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:05,984 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:05,984 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 11:24:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:24:06,009 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:06,010 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:24:06,012 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:06,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:06,017 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-10-22 11:24:06,027 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:06,029 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300943826] [2019-10-22 11:24:06,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:06,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:06,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:06,195 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:24:06,196 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:24:06,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:06 BoogieIcfgContainer [2019-10-22 11:24:06,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:06,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:06,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:06,213 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:06,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:05" (3/4) ... [2019-10-22 11:24:06,216 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:24:06,253 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3e3e403a-89fb-4f3a-bae3-3a830a3eed3e/bin/utaipan/witness.graphml [2019-10-22 11:24:06,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:06,255 INFO L168 Benchmark]: Toolchain (without parser) took 908.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:06,256 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:06,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:06,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:06,257 INFO L168 Benchmark]: Boogie Preprocessor took 28.05 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. [2019-10-22 11:24:06,258 INFO L168 Benchmark]: RCFGBuilder took 195.09 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:06,258 INFO L168 Benchmark]: TraceAbstraction took 295.18 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:06,259 INFO L168 Benchmark]: Witness Printer took 40.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:06,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.05 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. * RCFGBuilder took 195.09 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 295.18 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x = 0; [L13] unsigned short N = __VERIFIER_nondet_ushort(); [L15] COND FALSE !(x < N) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...