./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/config/AutomizerReach.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_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer --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 Automizer --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 0.1.23-1dbac8b [2018-10-26 23:21:17,412 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:21:17,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:21:17,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:21:17,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:21:17,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:21:17,427 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:21:17,429 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:21:17,431 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:21:17,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:21:17,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:21:17,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:21:17,434 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:21:17,435 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:21:17,436 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:21:17,437 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:21:17,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:21:17,439 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:21:17,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:21:17,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:21:17,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:21:17,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:21:17,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:21:17,448 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:21:17,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:21:17,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:21:17,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:21:17,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:21:17,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:21:17,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:21:17,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:21:17,455 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:21:17,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:21:17,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:21:17,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:21:17,457 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:21:17,457 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:21:17,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:21:17,470 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:21:17,471 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:21:17,471 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:21:17,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:21:17,472 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:21:17,472 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:21:17,472 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:21:17,473 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:21:17,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:21:17,473 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:21:17,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:21:17,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:21:17,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:21:17,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:21:17,475 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:21:17,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:21:17,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:21:17,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:21:17,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:21:17,476 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:21:17,477 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:21:17,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:21:17,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:21:17,477 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer 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 -> Automizer 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 [2018-10-26 23:21:17,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:21:17,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:21:17,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:21:17,529 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:21:17,530 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:21:17,531 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-26 23:21:17,595 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/data/61600187a/7f9a1efabbd142ec9772b21b2c42213d/FLAG5dc663700 [2018-10-26 23:21:18,002 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:21:18,002 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/sv-benchmarks/c/loop-crafted/simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-26 23:21:18,009 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/data/61600187a/7f9a1efabbd142ec9772b21b2c42213d/FLAG5dc663700 [2018-10-26 23:21:18,024 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/data/61600187a/7f9a1efabbd142ec9772b21b2c42213d [2018-10-26 23:21:18,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:21:18,029 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:21:18,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:21:18,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:21:18,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:21:18,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@868a2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18, skipping insertion in model container [2018-10-26 23:21:18,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:21:18,069 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:21:18,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:21:18,219 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:21:18,237 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:21:18,255 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:21:18,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18 WrapperNode [2018-10-26 23:21:18,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:21:18,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:21:18,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:21:18,257 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:21:18,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... [2018-10-26 23:21:18,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:21:18,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:21:18,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:21:18,295 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:21:18,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/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 [2018-10-26 23:21:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:21:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:21:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:21:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:21:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:21:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 23:21:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:21:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-10-26 23:21:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:21:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 23:21:18,779 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:21:18,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:18 BoogieIcfgContainer [2018-10-26 23:21:18,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:21:18,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:21:18,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:21:18,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:21:18,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:21:18" (1/3) ... [2018-10-26 23:21:18,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4cd9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:21:18, skipping insertion in model container [2018-10-26 23:21:18,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:21:18" (2/3) ... [2018-10-26 23:21:18,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4cd9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:21:18, skipping insertion in model container [2018-10-26 23:21:18,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:18" (3/3) ... [2018-10-26 23:21:18,789 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_false-unreach-call1_false-termination.i [2018-10-26 23:21:18,801 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:21:18,809 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:21:18,826 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:21:18,858 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:21:18,859 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:21:18,859 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:21:18,859 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:21:18,859 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:21:18,860 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:21:18,860 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:21:18,860 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:21:18,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:21:18,879 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-10-26 23:21:18,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:21:18,886 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:21:18,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:21:18,889 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:21:18,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:21:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1284894749, now seen corresponding path program 1 times [2018-10-26 23:21:18,898 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:21:18,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:21:18,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:18,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:21:18,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:19,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:21:19,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:21:19,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:21:19,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:21:19,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:21:19,063 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-10-26 23:21:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:21:19,087 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2018-10-26 23:21:19,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:21:19,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-10-26 23:21:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:21:19,098 INFO L225 Difference]: With dead ends: 48 [2018-10-26 23:21:19,099 INFO L226 Difference]: Without dead ends: 21 [2018-10-26 23:21:19,103 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 [2018-10-26 23:21:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-10-26 23:21:19,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-10-26 23:21:19,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-26 23:21:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-10-26 23:21:19,144 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2018-10-26 23:21:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:21:19,145 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-10-26 23:21:19,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:21:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-10-26 23:21:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:21:19,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:21:19,147 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:21:19,147 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:21:19,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:21:19,148 INFO L82 PathProgramCache]: Analyzing trace with hash 215199249, now seen corresponding path program 1 times [2018-10-26 23:21:19,148 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:21:19,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:21:19,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:19,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:21:19,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:21:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:21:19,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:21:19,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:21:19,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:21:19,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:21:19,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:21:19,342 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2018-10-26 23:21:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:21:19,461 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-10-26 23:21:19,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 23:21:19,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-10-26 23:21:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:21:19,464 INFO L225 Difference]: With dead ends: 36 [2018-10-26 23:21:19,464 INFO L226 Difference]: Without dead ends: 31 [2018-10-26 23:21:19,465 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:21:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-26 23:21:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2018-10-26 23:21:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-26 23:21:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-10-26 23:21:19,471 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 16 [2018-10-26 23:21:19,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:21:19,472 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-10-26 23:21:19,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:21:19,472 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-10-26 23:21:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:21:19,473 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:21:19,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:21:19,473 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:21:19,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:21:19,474 INFO L82 PathProgramCache]: Analyzing trace with hash 669314286, now seen corresponding path program 1 times [2018-10-26 23:21:19,474 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:21:19,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:21:19,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:19,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:21:19,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:21:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:21:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:21:19,553 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:21:19,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:21:19 BoogieIcfgContainer [2018-10-26 23:21:19,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:21:19,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:21:19,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:21:19,578 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:21:19,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:21:18" (3/4) ... [2018-10-26 23:21:19,581 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:21:19,625 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3ab68840-f3ec-4688-8a46-7f0512cf4d3c/bin-2019/uautomizer/witness.graphml [2018-10-26 23:21:19,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:21:19,626 INFO L168 Benchmark]: Toolchain (without parser) took 1598.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:19,628 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:21:19,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.88 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:19,629 INFO L168 Benchmark]: Boogie Preprocessor took 37.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:19,630 INFO L168 Benchmark]: RCFGBuilder took 485.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:19,630 INFO L168 Benchmark]: TraceAbstraction took 796.26 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:21:19,631 INFO L168 Benchmark]: Witness Printer took 47.96 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. [2018-10-26 23:21:19,634 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.88 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 485.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 796.26 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.96 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. * 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] FCALL unsigned int array[10000]; VAL [array={40002:0}] [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 VAL [array={40002:0}, index=10000, tmp=0, tmp < 10000 && array[tmp] == tmp=1] [L34] EXPR, FCALL array[tmp] VAL [array={40002:0}, array[tmp]=1, index=10000, tmp=0, tmp < 10000 && array[tmp] == tmp=1] [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, 30 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 8 SDslu, 34 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...