./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s2liff.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_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s2liff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4027bb0cfa9b444de3c49eeb4f57bbd5ece3ac53 .................................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-11-25 08:52:40,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:40,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:40,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:40,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:40,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:40,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:40,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:40,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:40,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:40,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:40,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:40,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:40,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:40,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:40,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:40,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:40,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:40,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:40,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:40,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:40,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:40,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:40,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:40,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:40,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:40,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:40,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:40,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:40,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:40,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:40,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:40,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:40,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:40,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:40,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:40,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:40,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:40,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:40,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:40,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:40,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:40,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:40,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:40,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:40,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:40,872 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:40,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:40,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:40,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:40,874 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:40,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:40,874 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:40,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:40,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:40,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:40,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:40,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:40,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:40,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:40,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:40,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:40,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:40,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:40,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:40,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer 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 -> Automizer 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 -> 4027bb0cfa9b444de3c49eeb4f57bbd5ece3ac53 [2019-11-25 08:52:41,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:41,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:41,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:41,046 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:41,046 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:41,047 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s2liff.c [2019-11-25 08:52:41,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/data/f52e2a6ac/16fc1c19b21444b48d63faf2ad5bd115/FLAG3bcdeada5 [2019-11-25 08:52:41,447 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:41,447 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/sv-benchmarks/c/array-fpi/s2liff.c [2019-11-25 08:52:41,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/data/f52e2a6ac/16fc1c19b21444b48d63faf2ad5bd115/FLAG3bcdeada5 [2019-11-25 08:52:41,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/data/f52e2a6ac/16fc1c19b21444b48d63faf2ad5bd115 [2019-11-25 08:52:41,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:41,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:41,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:41,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:41,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:41,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17dc21c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41, skipping insertion in model container [2019-11-25 08:52:41,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:41,495 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:41,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:41,771 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:41,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:41,810 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:41,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41 WrapperNode [2019-11-25 08:52:41,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:41,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:41,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:41,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:41,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:41,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:41,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:41,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:41,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:41,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:41,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:41,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:41,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/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 [2019-11-25 08:52:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:52:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:52:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:52:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:42,202 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:42,202 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:52:42,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:42 BoogieIcfgContainer [2019-11-25 08:52:42,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:42,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:42,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:42,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:42,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:41" (1/3) ... [2019-11-25 08:52:42,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a80bf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:42, skipping insertion in model container [2019-11-25 08:52:42,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (2/3) ... [2019-11-25 08:52:42,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a80bf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:42, skipping insertion in model container [2019-11-25 08:52:42,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:42" (3/3) ... [2019-11-25 08:52:42,218 INFO L109 eAbstractionObserver]: Analyzing ICFG s2liff.c [2019-11-25 08:52:42,238 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:42,244 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:42,253 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:42,272 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:42,272 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:42,272 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:42,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:42,273 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:42,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:42,273 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:42,273 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-25 08:52:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:52:42,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,295 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:42,297 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-25 08:52:42,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069224017] [2019-11-25 08:52:42,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:42,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069224017] [2019-11-25 08:52:42,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:42,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:52:42,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497159207] [2019-11-25 08:52:42,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:52:42,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:52:42,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:52:42,440 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-25 08:52:42,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,456 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-25 08:52:42,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:52:42,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-25 08:52:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,466 INFO L225 Difference]: With dead ends: 35 [2019-11-25 08:52:42,467 INFO L226 Difference]: Without dead ends: 16 [2019-11-25 08:52:42,469 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:52:42,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-25 08:52:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-25 08:52:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:52:42,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-25 08:52:42,500 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-25 08:52:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,500 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-25 08:52:42,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:52:42,501 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-25 08:52:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:52:42,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,502 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:42,502 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,502 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-25 08:52:42,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061885126] [2019-11-25 08:52:42,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:42,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061885126] [2019-11-25 08:52:42,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:42,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:42,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321703680] [2019-11-25 08:52:42,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:42,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:42,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:42,590 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-25 08:52:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,648 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-25 08:52:42,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:42,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-25 08:52:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,650 INFO L225 Difference]: With dead ends: 29 [2019-11-25 08:52:42,650 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:52:42,651 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 [2019-11-25 08:52:42,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:52:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-25 08:52:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:52:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-25 08:52:42,655 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-25 08:52:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,655 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-25 08:52:42,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-25 08:52:42,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:52:42,656 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,656 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:42,656 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,657 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-25 08:52:42,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325994362] [2019-11-25 08:52:42,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:52:42,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325994362] [2019-11-25 08:52:42,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:42,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:52:42,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096007620] [2019-11-25 08:52:42,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:52:42,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:42,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:52:42,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:52:42,717 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-25 08:52:42,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:42,786 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-25 08:52:42,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:52:42,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-25 08:52:42,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:42,788 INFO L225 Difference]: With dead ends: 30 [2019-11-25 08:52:42,788 INFO L226 Difference]: Without dead ends: 23 [2019-11-25 08:52:42,789 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 [2019-11-25 08:52:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-25 08:52:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-11-25 08:52:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-25 08:52:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-25 08:52:42,793 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-25 08:52:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:42,793 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-25 08:52:42,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:52:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-25 08:52:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:52:42,794 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:42,794 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:42,794 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:42,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-25 08:52:42,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:42,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376297757] [2019-11-25 08:52:42,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:42,908 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:42,908 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:42,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:42 BoogieIcfgContainer [2019-11-25 08:52:42,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:42,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:42,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:42,936 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:42,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:42" (3/4) ... [2019-11-25 08:52:42,939 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:42,986 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8806c896-a672-4236-b8e6-ed303496e1b8/bin/uautomizer/witness.graphml [2019-11-25 08:52:42,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:42,988 INFO L168 Benchmark]: Toolchain (without parser) took 1522.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -99.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:42,989 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:42,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:42,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:42,990 INFO L168 Benchmark]: Boogie Preprocessor took 28.25 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. [2019-11-25 08:52:42,991 INFO L168 Benchmark]: RCFGBuilder took 326.49 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:42,991 INFO L168 Benchmark]: TraceAbstraction took 731.49 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:42,992 INFO L168 Benchmark]: Witness Printer took 50.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:42,994 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.25 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. * RCFGBuilder took 326.49 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 731.49 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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; VAL [N=0] [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); [L26] sum[0] = N [L27] i=0 VAL [N=1] [L27] COND TRUE i