./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn5f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/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 56a70c780b22392476be771a2c3eb33a855f79ce .......................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 12:30:04,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:30:04,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:30:04,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:30:04,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:30:04,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:30:04,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:30:04,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:30:04,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:30:04,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:30:04,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:30:04,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:30:04,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:30:04,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:30:04,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:30:04,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:30:04,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:30:04,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:30:04,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:30:04,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:30:04,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:30:04,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:30:04,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:30:04,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:30:04,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:30:04,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:30:04,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:30:04,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:30:04,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:30:04,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:30:04,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:30:04,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:30:04,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:30:04,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:30:04,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:30:04,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:30:04,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:30:04,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:30:04,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:30:04,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:30:04,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:30:04,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:30:04,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:30:04,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:30:04,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:30:04,273 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:30:04,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:30:04,274 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:30:04,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:30:04,274 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:30:04,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:30:04,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:30:04,275 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:30:04,275 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:30:04,275 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:30:04,275 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:30:04,275 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:30:04,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:30:04,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:30:04,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:30:04,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:30:04,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:30:04,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:30:04,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:30:04,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:30:04,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:30:04,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:30:04,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:30:04,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:30:04,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:30:04,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:30:04,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:30:04,279 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:30:04,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:30:04,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:30:04,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:30:04,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:30:04,280 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_f6d10566-95cc-44e9-95da-6fd0362e22fc/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 -> 56a70c780b22392476be771a2c3eb33a855f79ce [2019-12-07 12:30:04,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:30:04,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:30:04,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:30:04,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:30:04,398 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:30:04,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/../../sv-benchmarks/c/array-fpi/ifeqn5f.c [2019-12-07 12:30:04,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/data/03a87ef41/ef80372bd256431280f265152075d8e0/FLAG974c14ba2 [2019-12-07 12:30:04,849 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:30:04,849 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/sv-benchmarks/c/array-fpi/ifeqn5f.c [2019-12-07 12:30:04,853 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/data/03a87ef41/ef80372bd256431280f265152075d8e0/FLAG974c14ba2 [2019-12-07 12:30:04,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/data/03a87ef41/ef80372bd256431280f265152075d8e0 [2019-12-07 12:30:04,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:30:04,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:30:04,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:30:04,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:30:04,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:30:04,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:30:04" (1/1) ... [2019-12-07 12:30:04,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b32c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:04, skipping insertion in model container [2019-12-07 12:30:04,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:30:04" (1/1) ... [2019-12-07 12:30:04,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:30:04,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:30:05,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:30:05,033 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:30:05,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:30:05,059 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:30:05,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05 WrapperNode [2019-12-07 12:30:05,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:30:05,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:30:05,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:30:05,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:30:05,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:30:05,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:30:05,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:30:05,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:30:05,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... [2019-12-07 12:30:05,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:30:05,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:30:05,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:30:05,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:30:05,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/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 [2019-12-07 12:30:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:30:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:30:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:30:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:30:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:30:05,352 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:30:05,352 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 12:30:05,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:30:05 BoogieIcfgContainer [2019-12-07 12:30:05,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:30:05,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:30:05,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:30:05,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:30:05,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:30:04" (1/3) ... [2019-12-07 12:30:05,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c25a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:30:05, skipping insertion in model container [2019-12-07 12:30:05,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:30:05" (2/3) ... [2019-12-07 12:30:05,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c25a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:30:05, skipping insertion in model container [2019-12-07 12:30:05,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:30:05" (3/3) ... [2019-12-07 12:30:05,357 INFO L109 eAbstractionObserver]: Analyzing ICFG ifeqn5f.c [2019-12-07 12:30:05,365 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:30:05,369 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:30:05,376 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:30:05,390 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:30:05,390 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:30:05,390 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:30:05,390 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:30:05,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:30:05,390 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:30:05,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:30:05,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:30:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 12:30:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:30:05,402 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:30:05,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:30:05,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:30:05,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:30:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1907558339, now seen corresponding path program 1 times [2019-12-07 12:30:05,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:30:05,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401549116] [2019-12-07 12:30:05,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:30:05,475 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:30:05,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432554868] [2019-12-07 12:30:05,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:30:05,512 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:30:05,515 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:30:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:30:05,541 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:30:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:30:05,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401549116] [2019-12-07 12:30:05,550 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 12:30:05,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432554868] [2019-12-07 12:30:05,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:30:05,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:30:05,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045509269] [2019-12-07 12:30:05,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:30:05,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:30:05,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:30:05,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:30:05,564 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-12-07 12:30:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:30:05,592 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2019-12-07 12:30:05,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:30:05,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 12:30:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:30:05,599 INFO L225 Difference]: With dead ends: 20 [2019-12-07 12:30:05,599 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 12:30:05,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:30:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 12:30:05,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 12:30:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 12:30:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 12:30:05,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2019-12-07 12:30:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:30:05,621 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 12:30:05,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:30:05,621 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-12-07 12:30:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 12:30:05,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:30:05,622 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:30:05,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:05,823 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:30:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:30:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash 943394408, now seen corresponding path program 1 times [2019-12-07 12:30:05,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:30:05,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257383458] [2019-12-07 12:30:05,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:30:05,863 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:30:05,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111899272] [2019-12-07 12:30:05,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:30:05,907 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:30:05,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:30:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 12:30:05,925 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:30:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 12:30:05,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257383458] [2019-12-07 12:30:05,934 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 12:30:05,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111899272] [2019-12-07 12:30:05,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:30:05,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-12-07 12:30:05,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960738912] [2019-12-07 12:30:05,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:30:05,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:30:05,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:30:05,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:30:05,937 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 5 states. [2019-12-07 12:30:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:30:05,968 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-12-07 12:30:05,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:30:05,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-07 12:30:05,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:30:05,969 INFO L225 Difference]: With dead ends: 21 [2019-12-07 12:30:05,969 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 12:30:05,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:30:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 12:30:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2019-12-07 12:30:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 12:30:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 12:30:05,972 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2019-12-07 12:30:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:30:05,972 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 12:30:05,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:30:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-07 12:30:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:30:05,973 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:30:05,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:30:06,173 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:06,174 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:30:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:30:06,175 INFO L82 PathProgramCache]: Analyzing trace with hash -820589996, now seen corresponding path program 1 times [2019-12-07 12:30:06,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:30:06,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903124448] [2019-12-07 12:30:06,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:30:06,224 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:30:06,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063279719] [2019-12-07 12:30:06,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:30:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:30:06,300 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 12:30:06,300 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:30:06,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:30:06,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:30:06 BoogieIcfgContainer [2019-12-07 12:30:06,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:30:06,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:30:06,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:30:06,541 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:30:06,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:30:05" (3/4) ... [2019-12-07 12:30:06,544 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:30:06,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6d10566-95cc-44e9-95da-6fd0362e22fc/bin/utaipan/witness.graphml [2019-12-07 12:30:06,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:30:06,579 INFO L168 Benchmark]: Toolchain (without parser) took 1715.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -59.4 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:30:06,579 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:30:06,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:30:06,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:30:06,580 INFO L168 Benchmark]: Boogie Preprocessor took 20.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:30:06,581 INFO L168 Benchmark]: RCFGBuilder took 245.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:30:06,581 INFO L168 Benchmark]: TraceAbstraction took 1186.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:30:06,581 INFO L168 Benchmark]: Witness Printer took 37.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:30:06,583 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1186.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i