./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i --full-output --rcfgbuilder.size.of.a.code.block LoopFreeBlock --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c 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/loop-crafted/simple_array_index_value_false-unreach-call1_false-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 812742039d02caa806a6f44f2f3d29fbaac1cc75 --rcfgbuilder.size.of.a.code.block LoopFreeBlock ............................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-0210da8 [2018-10-22 10:14:19,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 10:14:19,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 10:14:19,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 10:14:19,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 10:14:19,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 10:14:19,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 10:14:19,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 10:14:19,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 10:14:19,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 10:14:19,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 10:14:19,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 10:14:19,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 10:14:19,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 10:14:19,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 10:14:19,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 10:14:19,829 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 10:14:19,832 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 10:14:19,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 10:14:19,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 10:14:19,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 10:14:19,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 10:14:19,841 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 10:14:19,842 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 10:14:19,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 10:14:19,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 10:14:19,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 10:14:19,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 10:14:19,846 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 10:14:19,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 10:14:19,848 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 10:14:19,849 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 10:14:19,849 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 10:14:19,849 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 10:14:19,850 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 10:14:19,851 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 10:14:19,851 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 10:14:19,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 10:14:19,867 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 10:14:19,868 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 10:14:19,868 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 10:14:19,868 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 10:14:19,869 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 10:14:19,869 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 10:14:19,870 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 10:14:19,870 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 10:14:19,870 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 10:14:19,870 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 10:14:19,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 10:14:19,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 10:14:19,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 10:14:19,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 10:14:19,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 10:14:19,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 10:14:19,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 10:14:19,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 10:14:19,874 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 10:14:19,874 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 10:14:19,874 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 10:14:19,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 10:14:19,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 10:14:19,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 10:14:19,875 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 10:14:19,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 10:14:19,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 10:14:19,875 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 10:14:19,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 10:14:19,876 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 10:14:19,877 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 10:14:19,877 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 10:14:19,878 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 10:14:19,878 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 -> 812742039d02caa806a6f44f2f3d29fbaac1cc75 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock [2018-10-22 10:14:19,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 10:14:19,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 10:14:19,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 10:14:19,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 10:14:19,950 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 10:14:19,950 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-22 10:14:20,016 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dee8206fb/aacf40e148084f29b1e6ca2a97df9111/FLAGeb0bec7bb [2018-10-22 10:14:20,479 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 10:14:20,480 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-22 10:14:20,486 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dee8206fb/aacf40e148084f29b1e6ca2a97df9111/FLAGeb0bec7bb [2018-10-22 10:14:20,502 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dee8206fb/aacf40e148084f29b1e6ca2a97df9111 [2018-10-22 10:14:20,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 10:14:20,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 10:14:20,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 10:14:20,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 10:14:20,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 10:14:20,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfcbbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20, skipping insertion in model container [2018-10-22 10:14:20,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 10:14:20,557 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 10:14:20,735 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:14:20,739 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 10:14:20,766 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:14:20,793 INFO L193 MainTranslator]: Completed translation [2018-10-22 10:14:20,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20 WrapperNode [2018-10-22 10:14:20,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 10:14:20,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 10:14:20,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 10:14:20,796 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 10:14:20,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 10:14:20,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 10:14:20,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 10:14:20,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 10:14:20,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (1/1) ... [2018-10-22 10:14:20,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 10:14:20,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 10:14:20,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 10:14:20,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 10:14:20,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (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 10:14:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 10:14:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 10:14:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 10:14:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 10:14:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 10:14:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 10:14:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 10:14:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 10:14:21,459 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 10:14:21,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:21 BoogieIcfgContainer [2018-10-22 10:14:21,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 10:14:21,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 10:14:21,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 10:14:21,464 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 10:14:21,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 10:14:20" (1/3) ... [2018-10-22 10:14:21,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37af1969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:14:21, skipping insertion in model container [2018-10-22 10:14:21,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:20" (2/3) ... [2018-10-22 10:14:21,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37af1969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:14:21, skipping insertion in model container [2018-10-22 10:14:21,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:21" (3/3) ... [2018-10-22 10:14:21,467 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-22 10:14:21,476 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 10:14:21,486 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 10:14:21,503 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 10:14:21,534 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 10:14:21,535 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 10:14:21,535 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 10:14:21,535 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 10:14:21,536 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 10:14:21,536 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 10:14:21,536 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 10:14:21,536 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 10:14:21,536 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 10:14:21,554 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-22 10:14:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 10:14:21,560 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:14:21,561 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:14:21,564 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:14:21,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:14:21,574 INFO L82 PathProgramCache]: Analyzing trace with hash -968667344, now seen corresponding path program 1 times [2018-10-22 10:14:21,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:14:21,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:14:21,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:14:21,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:14:21,625 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:14:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:14:21,701 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 10:14:21,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:14:21,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 10:14:21,704 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:14:21,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 10:14:21,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 10:14:21,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 10:14:21,726 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-10-22 10:14:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:14:21,747 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-10-22 10:14:21,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 10:14:21,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-22 10:14:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:14:21,757 INFO L225 Difference]: With dead ends: 32 [2018-10-22 10:14:21,757 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 10:14:21,761 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 10:14:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 10:14:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 10:14:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 10:14:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-22 10:14:21,801 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-22 10:14:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:14:21,801 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-22 10:14:21,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 10:14:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-22 10:14:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 10:14:21,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:14:21,802 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:14:21,803 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:14:21,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:14:21,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1184696806, now seen corresponding path program 1 times [2018-10-22 10:14:21,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:14:21,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:14:21,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:14:21,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:14:21,805 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:14:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 10:14:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 10:14:21,917 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-22 10:14:21,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,938 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,938 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,939 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,940 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,940 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,942 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,942 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:14:21 BoogieIcfgContainer [2018-10-22 10:14:21,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 10:14:21,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 10:14:21,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 10:14:21,971 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 10:14:21,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:21" (3/4) ... [2018-10-22 10:14:21,976 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-22 10:14:21,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,980 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,981 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,981 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,982 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,983 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,983 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,983 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,984 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:21,989 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 10:14:22,059 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 10:14:22,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 10:14:22,060 INFO L168 Benchmark]: Toolchain (without parser) took 1553.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-10-22 10:14:22,065 INFO L168 Benchmark]: CDTParser took 0.19 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 10:14:22,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.19 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 10:14:22,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.32 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:14:22,070 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-22 10:14:22,072 INFO L168 Benchmark]: RCFGBuilder took 590.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-10-22 10:14:22,076 INFO L168 Benchmark]: TraceAbstraction took 510.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-10-22 10:14:22,077 INFO L168 Benchmark]: Witness Printer took 88.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:14:22,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 285.19 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 47.32 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 590.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 510.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 88.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 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 * 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: [L21] CALL unsigned int array[10000]; [L21] RET unsigned int array[10000]; [L22] unsigned int index = 0; [L23] unsigned int tmp = 0; [L25] COND TRUE 1 [L26] index = __VERIFIER_nondet_uint() [L27] COND TRUE index >= 10000 [L34] EXPR tmp < 10000 && array[tmp] == tmp [L34] CALL, EXPR array[tmp] [L34] RET, EXPR array[tmp] [L34] EXPR tmp < 10000 && array[tmp] == tmp [L34] CALL __VERIFIER_assert(tmp < 10000 && array[tmp] == tmp) VAL [\old(cond)=0] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L12] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...