./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.24-6b5699a [2019-11-26 02:06:24,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:06:24,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:06:24,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:06:24,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:06:24,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:06:24,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:06:24,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:06:24,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:06:24,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:06:24,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:06:24,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:06:24,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:06:24,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:06:24,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:06:24,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:06:24,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:06:24,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:06:24,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:06:24,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:06:24,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:06:24,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:06:24,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:06:24,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:06:24,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:06:24,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:06:24,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:06:24,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:06:24,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:06:24,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:06:24,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:06:24,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:06:24,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:06:24,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:06:24,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:06:24,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:06:24,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:06:24,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:06:24,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:06:24,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:06:24,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:06:24,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:06:24,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:06:24,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:06:24,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:06:24,185 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:06:24,186 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:06:24,186 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:06:24,186 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:06:24,186 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:06:24,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:06:24,187 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:06:24,187 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:06:24,187 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:06:24,187 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:06:24,188 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:06:24,188 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:06:24,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:06:24,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:06:24,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:06:24,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:06:24,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:06:24,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:06:24,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:06:24,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:06:24,190 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:06:24,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:06:24,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:06:24,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:06:24,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:06:24,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:06:24,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:06:24,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:06:24,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:06:24,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:06:24,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:06:24,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:06:24,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:06:24,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:06:24,193 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 812742039d02caa806a6f44f2f3d29fbaac1cc75 [2019-11-26 02:06:24,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:06:24,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:06:24,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:06:24,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:06:24,336 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:06:24,337 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2019-11-26 02:06:24,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/data/cd81cedf5/b6d50d75800d4614bc1911f25bf045d6/FLAG42db91df8 [2019-11-26 02:06:24,784 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:06:24,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2019-11-26 02:06:24,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/data/cd81cedf5/b6d50d75800d4614bc1911f25bf045d6/FLAG42db91df8 [2019-11-26 02:06:25,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/data/cd81cedf5/b6d50d75800d4614bc1911f25bf045d6 [2019-11-26 02:06:25,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:06:25,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:06:25,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:06:25,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:06:25,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:06:25,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318b5901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25, skipping insertion in model container [2019-11-26 02:06:25,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:06:25,266 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:06:25,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:06:25,402 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:06:25,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:06:25,507 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:06:25,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25 WrapperNode [2019-11-26 02:06:25,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:06:25,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:06:25,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:06:25,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:06:25,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:06:25,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:06:25,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:06:25,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:06:25,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... [2019-11-26 02:06:25,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:06:25,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:06:25,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:06:25,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:06:25,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:06:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:06:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:06:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:06:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:06:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:06:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:06:26,015 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:06:26,016 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:06:26,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:26 BoogieIcfgContainer [2019-11-26 02:06:26,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:06:26,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:06:26,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:06:26,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:06:26,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:06:25" (1/3) ... [2019-11-26 02:06:26,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51727914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:06:26, skipping insertion in model container [2019-11-26 02:06:26,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:06:25" (2/3) ... [2019-11-26 02:06:26,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51727914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:06:26, skipping insertion in model container [2019-11-26 02:06:26,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:26" (3/3) ... [2019-11-26 02:06:26,026 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2019-11-26 02:06:26,034 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:06:26,043 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:06:26,054 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:06:26,079 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:06:26,080 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:06:26,080 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:06:26,080 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:06:26,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:06:26,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:06:26,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:06:26,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:06:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:06:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:06:26,104 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:26,105 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:06:26,105 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:26,110 INFO L82 PathProgramCache]: Analyzing trace with hash 68804718, now seen corresponding path program 1 times [2019-11-26 02:06:26,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:26,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158931958] [2019-11-26 02:06:26,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:06:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:06:26,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158931958] [2019-11-26 02:06:26,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:06:26,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:06:26,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223275063] [2019-11-26 02:06:26,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:06:26,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:06:26,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:06:26,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:06:26,256 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2019-11-26 02:06:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:06:26,272 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-26 02:06:26,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:06:26,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-26 02:06:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:06:26,281 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:06:26,282 INFO L226 Difference]: Without dead ends: 7 [2019-11-26 02:06:26,287 INFO L630 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 [2019-11-26 02:06:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-26 02:06:26,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-26 02:06:26,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-26 02:06:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-26 02:06:26,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-26 02:06:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:06:26,316 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-26 02:06:26,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:06:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-26 02:06:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:06:26,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:06:26,317 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:06:26,317 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:06:26,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:06:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2100550918, now seen corresponding path program 1 times [2019-11-26 02:06:26,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:06:26,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938205215] [2019-11-26 02:06:26,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:06:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:06:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:06:26,394 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:06:26,394 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:06:26,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:06:26 BoogieIcfgContainer [2019-11-26 02:06:26,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:06:26,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:06:26,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:06:26,414 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:06:26,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:06:26" (3/4) ... [2019-11-26 02:06:26,416 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:06:26,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b26608ca-1821-430e-9ade-4860e33ed276/bin/utaipan/witness.graphml [2019-11-26 02:06:26,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:06:26,456 INFO L168 Benchmark]: Toolchain (without parser) took 1217.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -117.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:26,457 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:26,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:26,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:26,458 INFO L168 Benchmark]: Boogie Preprocessor took 21.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:26,458 INFO L168 Benchmark]: RCFGBuilder took 456.00 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:26,459 INFO L168 Benchmark]: TraceAbstraction took 395.56 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:06:26,459 INFO L168 Benchmark]: Witness Printer took 41.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:06:26,462 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.43 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. * RCFGBuilder took 456.00 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 395.56 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.08 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] 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] tmp < 10000 && array[tmp] == tmp [L34] EXPR array[tmp] [L34] tmp < 10000 && array[tmp] == tmp [L11] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 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=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...