./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss1f.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_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ss1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 e031ef2556c7b65c227cf4680a42fedd84ef69fd ............................................................................................................................................................................................................................................................................................................................................................................................ 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 12:05:33,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:05:33,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:05:33,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:05:33,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:05:33,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:05:33,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:05:33,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:05:33,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:05:33,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:05:33,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:05:33,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:05:33,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:05:33,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:05:33,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:05:33,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:05:33,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:05:33,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:05:33,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:05:33,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:05:33,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:05:33,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:05:33,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:05:33,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:05:33,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:05:33,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:05:33,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:05:33,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:05:33,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:05:33,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:05:33,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:05:33,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:05:33,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:05:33,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:05:33,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:05:33,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:05:33,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:05:33,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:05:33,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:05:33,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:05:33,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:05:33,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:05:33,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:05:33,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:05:33,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:05:33,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:05:33,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:05:33,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:05:33,911 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:05:33,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:05:33,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:05:33,911 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:05:33,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:05:33,912 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:05:33,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:05:33,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:05:33,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:05:33,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:05:33,914 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_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 -> e031ef2556c7b65c227cf4680a42fedd84ef69fd [2019-12-07 12:05:34,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:05:34,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:05:34,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:05:34,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:05:34,032 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:05:34,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/../../sv-benchmarks/c/array-fpi/ss1f.c [2019-12-07 12:05:34,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/data/b775a8732/187a8a2ca6b84d99931b739252dd20f6/FLAG53f7146a0 [2019-12-07 12:05:34,511 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:05:34,511 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/sv-benchmarks/c/array-fpi/ss1f.c [2019-12-07 12:05:34,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/data/b775a8732/187a8a2ca6b84d99931b739252dd20f6/FLAG53f7146a0 [2019-12-07 12:05:34,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/data/b775a8732/187a8a2ca6b84d99931b739252dd20f6 [2019-12-07 12:05:34,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:05:34,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:05:34,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:34,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:05:34,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:05:34,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1861f0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34, skipping insertion in model container [2019-12-07 12:05:34,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:05:34,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:05:34,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:34,692 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:05:34,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:34,715 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:05:34,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34 WrapperNode [2019-12-07 12:05:34,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:34,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:34,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:05:34,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:05:34,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:34,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:05:34,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:05:34,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:05:34,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... [2019-12-07 12:05:34,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:05:34,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:05:34,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:05:34,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:05:34,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:05:34,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:05:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:05:35,006 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:05:35,007 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 12:05:35,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:35 BoogieIcfgContainer [2019-12-07 12:05:35,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:05:35,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:05:35,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:05:35,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:05:35,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:05:34" (1/3) ... [2019-12-07 12:05:35,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d958fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:35, skipping insertion in model container [2019-12-07 12:05:35,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:34" (2/3) ... [2019-12-07 12:05:35,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d958fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:35, skipping insertion in model container [2019-12-07 12:05:35,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:35" (3/3) ... [2019-12-07 12:05:35,012 INFO L109 eAbstractionObserver]: Analyzing ICFG ss1f.c [2019-12-07 12:05:35,018 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:05:35,023 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:05:35,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:05:35,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:05:35,044 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:05:35,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:05:35,044 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:05:35,044 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:05:35,044 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:05:35,044 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:05:35,044 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:05:35,053 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 12:05:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 12:05:35,057 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:35,057 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:35,057 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash -471915367, now seen corresponding path program 1 times [2019-12-07 12:05:35,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:05:35,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006091475] [2019-12-07 12:05:35,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:35,131 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:05:35,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917560406] [2019-12-07 12:05:35,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 12:05:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:35,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:05:35,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:05:35,204 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 12:05:35,205 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:05:35,214 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 12:05:35,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006091475] [2019-12-07 12:05:35,215 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 12:05:35,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917560406] [2019-12-07 12:05:35,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:35,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:05:35,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060429776] [2019-12-07 12:05:35,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:05:35,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:05:35,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:05:35,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:05:35,229 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2019-12-07 12:05:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:35,262 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2019-12-07 12:05:35,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:05:35,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 12:05:35,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:35,269 INFO L225 Difference]: With dead ends: 22 [2019-12-07 12:05:35,270 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 12:05:35,271 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 12:05:35,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 12:05:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 12:05:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 12:05:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 12:05:35,293 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 8 [2019-12-07 12:05:35,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:35,293 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 12:05:35,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:05:35,293 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2019-12-07 12:05:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:05:35,293 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:35,293 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:35,494 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:05:35,494 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:35,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:35,495 INFO L82 PathProgramCache]: Analyzing trace with hash -195387115, now seen corresponding path program 1 times [2019-12-07 12:05:35,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:05:35,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157318847] [2019-12-07 12:05:35,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:35,521 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:05:35,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179740592] [2019-12-07 12:05:35,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 12:05:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:35,575 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:05:35,576 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:05:35,599 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 12:05:35,600 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:05:35,607 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 12:05:35,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157318847] [2019-12-07 12:05:35,608 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 12:05:35,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179740592] [2019-12-07 12:05:35,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:35,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-12-07 12:05:35,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941807416] [2019-12-07 12:05:35,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:05:35,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:05:35,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:05:35,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:05:35,610 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand 5 states. [2019-12-07 12:05:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:35,633 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-12-07 12:05:35,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:05:35,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 12:05:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:35,634 INFO L225 Difference]: With dead ends: 18 [2019-12-07 12:05:35,634 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 12:05:35,635 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:05:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 12:05:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 12:05:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 12:05:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 12:05:35,637 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2019-12-07 12:05:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:35,637 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 12:05:35,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:05:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 12:05:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:05:35,638 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:35,638 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:35,839 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:05:35,840 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:35,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:35,840 INFO L82 PathProgramCache]: Analyzing trace with hash -503724902, now seen corresponding path program 1 times [2019-12-07 12:05:35,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:05:35,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366946848] [2019-12-07 12:05:35,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:35,857 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 12:05:35,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339260756] [2019-12-07 12:05:35,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/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 12:05:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:05:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:05:35,915 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 12:05:35,916 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:05:36,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:05:36,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:05:36 BoogieIcfgContainer [2019-12-07 12:05:36,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:05:36,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:05:36,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:05:36,161 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:05:36,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:35" (3/4) ... [2019-12-07 12:05:36,163 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:05:36,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3e89b18a-ebfb-4a6c-a98b-433fd42c9a47/bin/utaipan/witness.graphml [2019-12-07 12:05:36,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:05:36,198 INFO L168 Benchmark]: Toolchain (without parser) took 1671.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 942.0 MB in the beginning and 960.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,199 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:05:36,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.15 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,200 INFO L168 Benchmark]: Boogie Preprocessor took 17.49 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,200 INFO L168 Benchmark]: RCFGBuilder took 249.40 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,200 INFO L168 Benchmark]: TraceAbstraction took 1152.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 963.0 MB in the end (delta: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,201 INFO L168 Benchmark]: Witness Printer took 36.09 ms. Allocated memory is still 1.1 GB. Free memory was 963.0 MB in the beginning and 960.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:36,202 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.15 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.49 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.40 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1152.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 963.0 MB in the end (delta: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.09 ms. Allocated memory is still 1.1 GB. Free memory was 963.0 MB in the beginning and 960.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 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] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i