./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifncompf.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_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncompf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 ................................................................................................................................................................................................................................................................................................................................................................................... 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 11:41:30,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:41:30,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:41:30,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:41:30,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:41:30,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:41:30,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:41:30,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:41:30,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:41:30,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:41:30,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:41:30,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:41:30,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:41:30,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:41:30,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:41:30,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:41:30,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:41:30,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:41:30,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:41:30,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:41:30,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:41:30,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:41:30,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:41:30,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:41:30,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:41:30,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:41:30,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:41:30,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:41:30,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:41:30,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:41:30,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:41:30,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:41:30,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:41:30,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:41:30,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:41:30,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:41:30,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:41:30,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:41:30,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:41:30,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:41:30,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:41:30,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:41:30,631 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:41:30,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:41:30,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:41:30,632 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:41:30,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:41:30,633 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:41:30,633 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:41:30,633 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:41:30,633 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:41:30,634 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:41:30,634 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:41:30,634 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:41:30,634 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:41:30,634 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:41:30,635 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:41:30,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:41:30,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:41:30,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:41:30,637 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:41:30,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:41:30,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:41:30,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:41:30,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:41:30,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:41:30,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:41:30,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:41:30,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:41:30,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:41:30,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:41:30,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:41:30,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:41:30,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:41:30,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:41:30,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:41:30,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:41:30,639 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_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 -> 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 [2019-12-07 11:41:30,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:41:30,753 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:41:30,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:41:30,757 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:41:30,757 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:41:30,758 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/../../sv-benchmarks/c/array-fpi/ifncompf.c [2019-12-07 11:41:30,795 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/data/99a4161e5/daffc646387649098faf0a4680c6dcec/FLAG3603465e1 [2019-12-07 11:41:31,194 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:41:31,194 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/sv-benchmarks/c/array-fpi/ifncompf.c [2019-12-07 11:41:31,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/data/99a4161e5/daffc646387649098faf0a4680c6dcec/FLAG3603465e1 [2019-12-07 11:41:31,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/data/99a4161e5/daffc646387649098faf0a4680c6dcec [2019-12-07 11:41:31,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:41:31,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:41:31,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:41:31,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:41:31,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:41:31,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d78df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31, skipping insertion in model container [2019-12-07 11:41:31,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:41:31,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:41:31,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:41:31,375 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:41:31,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:41:31,398 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:41:31,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31 WrapperNode [2019-12-07 11:41:31,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:41:31,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:41:31,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:41:31,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:41:31,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:41:31,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:41:31,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:41:31,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:41:31,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... [2019-12-07 11:41:31,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:41:31,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:41:31,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:41:31,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:41:31,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 11:41:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:41:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:41:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:41:31,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:41:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:41:31,760 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:41:31,760 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 11:41:31,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:41:31 BoogieIcfgContainer [2019-12-07 11:41:31,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:41:31,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:41:31,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:41:31,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:41:31,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:41:31" (1/3) ... [2019-12-07 11:41:31,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563d034a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:41:31, skipping insertion in model container [2019-12-07 11:41:31,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:41:31" (2/3) ... [2019-12-07 11:41:31,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563d034a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:41:31, skipping insertion in model container [2019-12-07 11:41:31,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:41:31" (3/3) ... [2019-12-07 11:41:31,766 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2019-12-07 11:41:31,772 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:41:31,777 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:41:31,784 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:41:31,798 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:41:31,798 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:41:31,798 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:41:31,798 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:41:31,798 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:41:31,799 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:41:31,799 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:41:31,799 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:41:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 11:41:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 11:41:31,811 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:41:31,811 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:41:31,812 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:41:31,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:41:31,815 INFO L82 PathProgramCache]: Analyzing trace with hash 459542126, now seen corresponding path program 1 times [2019-12-07 11:41:31,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:41:31,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8651008] [2019-12-07 11:41:31,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:41:31,886 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 11:41:31,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662243567] [2019-12-07 11:41:31,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 11:41:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:41:31,922 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:41:31,926 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:41:31,951 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 11:41:31,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:41:31,959 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 11:41:31,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8651008] [2019-12-07 11:41:31,960 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:41:31,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662243567] [2019-12-07 11:41:31,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:41:31,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:41:31,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723340806] [2019-12-07 11:41:31,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:41:31,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:41:31,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:41:31,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:41:31,975 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2019-12-07 11:41:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:41:32,013 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2019-12-07 11:41:32,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:41:32,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 11:41:32,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:41:32,020 INFO L225 Difference]: With dead ends: 22 [2019-12-07 11:41:32,020 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 11:41:32,022 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 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 11:41:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 11:41:32,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 11:41:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 11:41:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-12-07 11:41:32,043 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2019-12-07 11:41:32,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:41:32,043 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 11:41:32,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:41:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2019-12-07 11:41:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 11:41:32,043 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:41:32,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:41:32,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:41:32,244 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:41:32,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:41:32,245 INFO L82 PathProgramCache]: Analyzing trace with hash -265538495, now seen corresponding path program 1 times [2019-12-07 11:41:32,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:41:32,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118300724] [2019-12-07 11:41:32,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:41:32,268 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 11:41:32,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620402503] [2019-12-07 11:41:32,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 11:41:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:41:32,298 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:41:32,299 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:41:32,315 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 11:41:32,315 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:41:32,321 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 11:41:32,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118300724] [2019-12-07 11:41:32,321 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:41:32,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620402503] [2019-12-07 11:41:32,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:41:32,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-12-07 11:41:32,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187706984] [2019-12-07 11:41:32,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:41:32,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:41:32,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:41:32,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:41:32,324 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 5 states. [2019-12-07 11:41:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:41:32,355 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-12-07 11:41:32,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:41:32,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 11:41:32,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:41:32,357 INFO L225 Difference]: With dead ends: 24 [2019-12-07 11:41:32,357 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 11:41:32,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 11:41:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 11:41:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2019-12-07 11:41:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 11:41:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 11:41:32,361 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2019-12-07 11:41:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:41:32,361 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 11:41:32,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:41:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 11:41:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:41:32,362 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:41:32,362 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:41:32,562 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:41:32,563 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:41:32,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:41:32,563 INFO L82 PathProgramCache]: Analyzing trace with hash 907483064, now seen corresponding path program 1 times [2019-12-07 11:41:32,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:41:32,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462794194] [2019-12-07 11:41:32,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:41:32,607 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 11:41:32,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329918975] [2019-12-07 11:41:32,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/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 11:41:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:41:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:41:32,663 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 11:41:32,663 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:41:32,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:41:32,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:41:32 BoogieIcfgContainer [2019-12-07 11:41:32,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:41:32,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:41:32,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:41:32,885 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:41:32,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:41:31" (3/4) ... [2019-12-07 11:41:32,887 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:41:32,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a665b3f-36ec-40e6-90d1-2d95af8c0d86/bin/utaipan/witness.graphml [2019-12-07 11:41:32,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:41:32,924 INFO L168 Benchmark]: Toolchain (without parser) took 1713.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 943.4 MB in the beginning and 976.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:41:32,924 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:41:32,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:41:32,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.15 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 11:41:32,925 INFO L168 Benchmark]: Boogie Preprocessor took 18.17 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 11:41:32,926 INFO L168 Benchmark]: RCFGBuilder took 318.47 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:41:32,926 INFO L168 Benchmark]: TraceAbstraction took 1123.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:41:32,927 INFO L168 Benchmark]: Witness Printer took 37.01 ms. Allocated memory is still 1.1 GB. Free memory is still 976.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:41:32,929 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.15 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 18.17 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 318.47 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1123.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.01 ms. Allocated memory is still 1.1 GB. Free memory is still 976.7 MB. 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); [L25] long long *c = malloc(sizeof(long long)*N); [L27] i=0 VAL [N=1] [L27] COND TRUE i