./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2f.c --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_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/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 564056b784b90a3931792cc012447154b9653601 ............................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:11:18,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:11:18,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:11:18,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:11:18,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:11:18,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:11:18,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:11:18,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:11:18,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:11:18,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:11:18,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:11:18,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:11:18,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:11:18,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:11:18,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:11:18,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:11:18,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:11:18,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:11:18,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:11:18,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:11:18,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:11:18,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:11:18,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:11:18,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:11:18,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:11:18,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:11:18,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:11:18,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:11:18,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:11:18,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:11:18,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:11:18,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:11:18,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:11:18,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:11:18,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:11:18,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:11:18,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:11:18,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:11:18,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:11:18,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:11:18,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:11:18,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:11:18,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:11:18,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:11:18,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:11:18,223 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:11:18,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:11:18,224 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:11:18,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:11:18,224 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:11:18,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:11:18,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:11:18,225 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:11:18,225 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:11:18,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:11:18,225 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:11:18,225 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:11:18,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:11:18,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:11:18,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:11:18,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:11:18,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:11:18,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:11:18,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:11:18,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:11:18,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:11:18,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:11:18,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:11:18,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:11:18,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:11:18,229 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:11:18,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:11:18,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:11:18,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:11:18,230 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_7451ac50-0453-402d-a09c-132a8da467e7/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 -> 564056b784b90a3931792cc012447154b9653601 [2019-11-26 02:11:18,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:11:18,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:11:18,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:11:18,379 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:11:18,379 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:11:18,380 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/../../sv-benchmarks/c/array-fpi/res2f.c [2019-11-26 02:11:18,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/data/2c3b60c67/33d270c702bf471fb61ea73a0da22844/FLAG2fa369fec [2019-11-26 02:11:18,868 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:11:18,869 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/sv-benchmarks/c/array-fpi/res2f.c [2019-11-26 02:11:18,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/data/2c3b60c67/33d270c702bf471fb61ea73a0da22844/FLAG2fa369fec [2019-11-26 02:11:19,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/data/2c3b60c67/33d270c702bf471fb61ea73a0da22844 [2019-11-26 02:11:19,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:11:19,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:11:19,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:19,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:11:19,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:11:19,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414509e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19, skipping insertion in model container [2019-11-26 02:11:19,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:11:19,294 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:11:19,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:19,539 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:11:19,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:19,595 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:11:19,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19 WrapperNode [2019-11-26 02:11:19,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:19,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:19,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:11:19,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:11:19,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:19,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:11:19,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:11:19,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:11:19,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:11:19,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:11:19,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:11:19,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:11:19,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/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 02:11:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:11:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:11:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:11:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:11:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:11:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:11:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:11:20,208 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:11:20,208 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 02:11:20,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20 BoogieIcfgContainer [2019-11-26 02:11:20,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:11:20,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:11:20,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:11:20,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:11:20,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:11:19" (1/3) ... [2019-11-26 02:11:20,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a8802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:20, skipping insertion in model container [2019-11-26 02:11:20,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19" (2/3) ... [2019-11-26 02:11:20,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a8802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:20, skipping insertion in model container [2019-11-26 02:11:20,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20" (3/3) ... [2019-11-26 02:11:20,216 INFO L109 eAbstractionObserver]: Analyzing ICFG res2f.c [2019-11-26 02:11:20,224 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:11:20,230 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:11:20,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:11:20,266 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:11:20,266 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:11:20,266 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:11:20,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:11:20,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:11:20,266 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:11:20,267 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:11:20,267 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:11:20,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-26 02:11:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:11:20,291 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:20,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:20,292 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:20,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:20,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1341803835, now seen corresponding path program 1 times [2019-11-26 02:11:20,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:20,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324672753] [2019-11-26 02:11:20,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:20,551 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 02:11:20,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324672753] [2019-11-26 02:11:20,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:20,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:11:20,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985026267] [2019-11-26 02:11:20,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:11:20,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:20,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:11:20,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:20,569 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-26 02:11:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:20,778 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2019-11-26 02:11:20,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:11:20,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-26 02:11:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:20,788 INFO L225 Difference]: With dead ends: 28 [2019-11-26 02:11:20,788 INFO L226 Difference]: Without dead ends: 16 [2019-11-26 02:11:20,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:11:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-26 02:11:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-26 02:11:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-26 02:11:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2019-11-26 02:11:20,825 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 25 transitions. Word has length 10 [2019-11-26 02:11:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:20,825 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 25 transitions. [2019-11-26 02:11:20,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:11:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2019-11-26 02:11:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:11:20,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:20,827 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:20,827 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:20,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:20,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1353909723, now seen corresponding path program 1 times [2019-11-26 02:11:20,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:20,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128033214] [2019-11-26 02:11:20,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:11:20,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128033214] [2019-11-26 02:11:20,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:20,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:11:20,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237432876] [2019-11-26 02:11:20,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:11:20,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:20,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:11:20,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:20,871 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 3 states. [2019-11-26 02:11:20,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:20,926 INFO L93 Difference]: Finished difference Result 30 states and 48 transitions. [2019-11-26 02:11:20,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:11:20,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-26 02:11:20,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:20,928 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:11:20,928 INFO L226 Difference]: Without dead ends: 17 [2019-11-26 02:11:20,929 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-26 02:11:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-26 02:11:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-26 02:11:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2019-11-26 02:11:20,935 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 26 transitions. Word has length 11 [2019-11-26 02:11:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:20,935 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-26 02:11:20,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:11:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2019-11-26 02:11:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:11:20,936 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:20,937 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:20,937 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash 133907669, now seen corresponding path program 1 times [2019-11-26 02:11:20,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:20,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427613684] [2019-11-26 02:11:20,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:11:21,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427613684] [2019-11-26 02:11:21,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:21,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:11:21,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190052995] [2019-11-26 02:11:21,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:11:21,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:21,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:11:21,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:21,014 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand 4 states. [2019-11-26 02:11:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:21,065 INFO L93 Difference]: Finished difference Result 27 states and 42 transitions. [2019-11-26 02:11:21,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:11:21,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-26 02:11:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:21,067 INFO L225 Difference]: With dead ends: 27 [2019-11-26 02:11:21,067 INFO L226 Difference]: Without dead ends: 17 [2019-11-26 02:11:21,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-26 02:11:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-26 02:11:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-26 02:11:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2019-11-26 02:11:21,072 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 12 [2019-11-26 02:11:21,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:21,072 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-26 02:11:21,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:11:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2019-11-26 02:11:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:11:21,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:21,073 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:21,074 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:21,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1011695807, now seen corresponding path program 1 times [2019-11-26 02:11:21,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:21,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581276105] [2019-11-26 02:11:21,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:11:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:11:21,215 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:11:21,215 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:11:21,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:11:21 BoogieIcfgContainer [2019-11-26 02:11:21,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:11:21,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:11:21,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:11:21,250 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:11:21,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20" (3/4) ... [2019-11-26 02:11:21,253 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:11:21,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7451ac50-0453-402d-a09c-132a8da467e7/bin/utaipan/witness.graphml [2019-11-26 02:11:21,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:11:21,342 INFO L168 Benchmark]: Toolchain (without parser) took 2082.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 55.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,342 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:21,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -226.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:21,349 INFO L168 Benchmark]: Boogie Preprocessor took 52.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,350 INFO L168 Benchmark]: RCFGBuilder took 507.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,351 INFO L168 Benchmark]: TraceAbstraction took 1039.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,352 INFO L168 Benchmark]: Witness Printer took 89.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:21,355 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -226.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1039.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. * Witness Printer took 89.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. 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 sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L25] int *b = malloc(sizeof(int)*N); [L26] int *c = malloc(sizeof(int)*N); [L28] sum[0] = 1 [L29] i=0 VAL [N=1] [L29] COND TRUE i