./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/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 812742039d02caa806a6f44f2f3d29fbaac1cc75 ............................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-02 22:26:28,599 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:26:28,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:26:28,606 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:26:28,606 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:26:28,607 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:26:28,607 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:26:28,608 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:26:28,609 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:26:28,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:26:28,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:26:28,610 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:26:28,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:26:28,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:26:28,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:26:28,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:26:28,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:26:28,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:26:28,614 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:26:28,615 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:26:28,615 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:26:28,616 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:26:28,617 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:26:28,617 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:26:28,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:26:28,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:26:28,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:26:28,618 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:26:28,619 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:26:28,619 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:26:28,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:26:28,620 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:26:28,620 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:26:28,620 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:26:28,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:26:28,621 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:26:28,621 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 22:26:28,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:26:28,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:26:28,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:26:28,629 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:26:28,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:26:28,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:26:28,629 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:26:28,629 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:26:28,630 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:26:28,630 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:26:28,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:26:28,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:26:28,632 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:26:28,632 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 22:26:28,632 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_844b8409-1b01-4a68-889e-12f87dd15e7b/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 -> 812742039d02caa806a6f44f2f3d29fbaac1cc75 [2018-12-02 22:26:28,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:26:28,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:26:28,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:26:28,659 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:26:28,659 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:26:28,660 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-12-02 22:26:28,693 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/data/8aaddf4ed/632217283d7646929d6e625235867724/FLAG5f072fabf [2018-12-02 22:26:29,107 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:26:29,108 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-12-02 22:26:29,111 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/data/8aaddf4ed/632217283d7646929d6e625235867724/FLAG5f072fabf [2018-12-02 22:26:29,120 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/data/8aaddf4ed/632217283d7646929d6e625235867724 [2018-12-02 22:26:29,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:26:29,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:26:29,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:26:29,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:26:29,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:26:29,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c57853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29, skipping insertion in model container [2018-12-02 22:26:29,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:26:29,144 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:26:29,237 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:26:29,239 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:26:29,250 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:26:29,261 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:26:29,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29 WrapperNode [2018-12-02 22:26:29,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:26:29,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:26:29,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:26:29,262 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:26:29,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:26:29,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:26:29,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:26:29,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:26:29,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... [2018-12-02 22:26:29,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:26:29,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:26:29,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:26:29,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:26:29,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/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 [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:26:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:26:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 22:26:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:26:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:26:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 22:26:29,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 22:26:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 22:26:29,435 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:26:29,435 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 22:26:29,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:29 BoogieIcfgContainer [2018-12-02 22:26:29,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:26:29,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:26:29,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:26:29,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:26:29,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:26:29" (1/3) ... [2018-12-02 22:26:29,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e386ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:26:29, skipping insertion in model container [2018-12-02 22:26:29,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:29" (2/3) ... [2018-12-02 22:26:29,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e386ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:26:29, skipping insertion in model container [2018-12-02 22:26:29,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:29" (3/3) ... [2018-12-02 22:26:29,440 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_false-unreach-call1_false-termination.i [2018-12-02 22:26:29,449 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:26:29,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:26:29,464 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:26:29,482 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:26:29,482 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:26:29,482 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:26:29,482 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:26:29,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:26:29,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:26:29,482 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:26:29,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:26:29,491 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-12-02 22:26:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 22:26:29,494 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:26:29,495 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:26:29,496 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:26:29,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:26:29,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1853270157, now seen corresponding path program 1 times [2018-12-02 22:26:29,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:26:29,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:26:29,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:26:29,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:26:29,538 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:26:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:26:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:26:29,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:26:29,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:26:29,581 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:26:29,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:26:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:26:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:26:29,592 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-12-02 22:26:29,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:26:29,604 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-12-02 22:26:29,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:26:29,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-12-02 22:26:29,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:26:29,611 INFO L225 Difference]: With dead ends: 36 [2018-12-02 22:26:29,611 INFO L226 Difference]: Without dead ends: 15 [2018-12-02 22:26:29,614 INFO L631 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 [2018-12-02 22:26:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-02 22:26:29,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-02 22:26:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 22:26:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-12-02 22:26:29,637 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-12-02 22:26:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:26:29,637 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-12-02 22:26:29,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:26:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-12-02 22:26:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 22:26:29,637 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:26:29,638 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:26:29,638 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:26:29,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:26:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2067386223, now seen corresponding path program 1 times [2018-12-02 22:26:29,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:26:29,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:26:29,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:26:29,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:26:29,639 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:26:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:26:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:26:29,680 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:26:29,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:26:29 BoogieIcfgContainer [2018-12-02 22:26:29,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:26:29,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:26:29,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:26:29,696 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:26:29,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:29" (3/4) ... [2018-12-02 22:26:29,697 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 22:26:29,722 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_844b8409-1b01-4a68-889e-12f87dd15e7b/bin-2019/utaipan/witness.graphml [2018-12-02 22:26:29,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:26:29,723 INFO L168 Benchmark]: Toolchain (without parser) took 600.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -117.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,724 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:26:29,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.62 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.74 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:26:29,724 INFO L168 Benchmark]: Boogie Preprocessor took 40.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,725 INFO L168 Benchmark]: RCFGBuilder took 119.90 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,725 INFO L168 Benchmark]: TraceAbstraction took 259.37 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,725 INFO L168 Benchmark]: Witness Printer took 26.89 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:26:29,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.62 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.7 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 12.74 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 119.90 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 259.37 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 26.89 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: 8.3 MB). Peak memory consumption was 8.3 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: [L21] unsigned int array[10000]; [L22] unsigned int index = 0; [L23] unsigned int tmp = 0; VAL [array={40002:0}, index=0, tmp=0] [L25] COND TRUE 1 [L26] index = __VERIFIER_nondet_uint() [L27] COND TRUE index >= 10000 VAL [array={40002:0}, index=10000, tmp=0] [L34] EXPR tmp < 10000 && array[tmp] == tmp [L34] EXPR array[tmp] [L34] EXPR tmp < 10000 && array[tmp] == tmp VAL [array={40002:0}, array[tmp]=1, index=10000, tmp=0, tmp < 10000 && array[tmp] == tmp=0] [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, 22 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 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=22occurred 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, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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...