./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/array-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/array-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/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 12bc5db9e359efdba093db73cc34fe7f7123f461 ................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-20 03:02:02,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:02:02,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:02:02,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:02:02,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:02:02,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:02:02,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:02:02,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:02:02,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:02:02,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:02:02,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:02:02,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:02:02,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:02:02,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:02:02,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:02:02,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:02:02,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:02:02,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:02:02,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:02:02,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:02:02,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:02:02,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:02:02,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:02:02,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:02:02,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:02:02,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:02:02,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:02:02,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:02:02,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:02:02,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:02:02,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:02:02,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:02:02,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:02:02,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:02:02,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:02:02,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:02:02,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:02:02,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:02:02,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:02:02,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:02:02,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:02:02,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:02:03,001 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:02:03,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:02:03,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:02:03,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:02:03,015 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:02:03,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:02:03,015 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:02:03,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:02:03,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:02:03,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:02:03,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:02:03,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:02:03,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:02:03,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:02:03,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:02:03,017 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:02:03,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:02:03,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:02:03,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:02:03,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:02:03,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:02:03,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:02:03,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:02:03,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:02:03,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:02:03,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:02:03,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:02:03,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:02:03,022 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_51db958b-1fbf-4760-a554-8b51e5d70c65/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 -> 12bc5db9e359efdba093db73cc34fe7f7123f461 [2019-11-20 03:02:03,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:02:03,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:02:03,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:02:03,243 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:02:03,247 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:02:03,248 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/../../sv-benchmarks/c/loops/array-2.c [2019-11-20 03:02:03,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/data/62eb3c8a8/214aea454c2c4a01ac656c612ad19c90/FLAG9dd090d08 [2019-11-20 03:02:03,696 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:02:03,697 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/sv-benchmarks/c/loops/array-2.c [2019-11-20 03:02:03,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/data/62eb3c8a8/214aea454c2c4a01ac656c612ad19c90/FLAG9dd090d08 [2019-11-20 03:02:03,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/data/62eb3c8a8/214aea454c2c4a01ac656c612ad19c90 [2019-11-20 03:02:03,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:02:03,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:02:03,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:02:03,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:02:03,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:02:03,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:02:03" (1/1) ... [2019-11-20 03:02:03,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309c849b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:03, skipping insertion in model container [2019-11-20 03:02:03,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:02:03" (1/1) ... [2019-11-20 03:02:03,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:02:03,755 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:02:03,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:02:04,052 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:02:04,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:02:04,091 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:02:04,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04 WrapperNode [2019-11-20 03:02:04,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:02:04,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:02:04,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:02:04,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:02:04,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:02:04,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:02:04,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:02:04,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:02:04,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... [2019-11-20 03:02:04,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:02:04,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:02:04,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:02:04,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:02:04,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/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 [2019-11-20 03:02:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:02:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:02:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:02:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 03:02:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:02:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:02:04,427 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:02:04,427 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 03:02:04,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:02:04 BoogieIcfgContainer [2019-11-20 03:02:04,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:02:04,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:02:04,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:02:04,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:02:04,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:02:03" (1/3) ... [2019-11-20 03:02:04,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b3bee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:02:04, skipping insertion in model container [2019-11-20 03:02:04,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:02:04" (2/3) ... [2019-11-20 03:02:04,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b3bee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:02:04, skipping insertion in model container [2019-11-20 03:02:04,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:02:04" (3/3) ... [2019-11-20 03:02:04,436 INFO L109 eAbstractionObserver]: Analyzing ICFG array-2.c [2019-11-20 03:02:04,445 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:02:04,451 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 03:02:04,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 03:02:04,496 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:02:04,496 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:02:04,497 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:02:04,497 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:02:04,497 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:02:04,497 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:02:04,497 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:02:04,497 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:02:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-20 03:02:04,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:02:04,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:02:04,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:02:04,518 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:02:04,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:02:04,523 INFO L82 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2019-11-20 03:02:04,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:02:04,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176452362] [2019-11-20 03:02:04,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:02:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:02:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:02:04,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176452362] [2019-11-20 03:02:04,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:02:04,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:02:04,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537785825] [2019-11-20 03:02:04,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:02:04,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:02:04,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:02:04,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:02:04,668 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-20 03:02:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:02:04,679 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-11-20 03:02:04,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:02:04,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-20 03:02:04,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:02:04,689 INFO L225 Difference]: With dead ends: 21 [2019-11-20 03:02:04,689 INFO L226 Difference]: Without dead ends: 9 [2019-11-20 03:02:04,692 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 [2019-11-20 03:02:04,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-20 03:02:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-20 03:02:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 03:02:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-20 03:02:04,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-11-20 03:02:04,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:02:04,719 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-20 03:02:04,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:02:04,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-20 03:02:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:02:04,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:02:04,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:02:04,721 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:02:04,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:02:04,721 INFO L82 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2019-11-20 03:02:04,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:02:04,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902178950] [2019-11-20 03:02:04,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:02:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:02:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:02:04,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902178950] [2019-11-20 03:02:04,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:02:04,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:02:04,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047333385] [2019-11-20 03:02:04,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:02:04,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:02:04,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:02:04,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:02:04,844 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-11-20 03:02:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:02:04,881 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-20 03:02:04,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:02:04,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 03:02:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:02:04,882 INFO L225 Difference]: With dead ends: 16 [2019-11-20 03:02:04,882 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 03:02:04,883 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 [2019-11-20 03:02:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 03:02:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-20 03:02:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 03:02:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-20 03:02:04,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2019-11-20 03:02:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:02:04,889 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-20 03:02:04,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:02:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-20 03:02:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 03:02:04,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:02:04,889 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:02:04,890 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:02:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:02:04,890 INFO L82 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2019-11-20 03:02:04,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:02:04,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601943438] [2019-11-20 03:02:04,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:02:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:02:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:02:04,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:02:04,978 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:02:05,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:02:05 BoogieIcfgContainer [2019-11-20 03:02:05,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:02:05,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:02:05,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:02:05,005 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:02:05,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:02:04" (3/4) ... [2019-11-20 03:02:05,008 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:02:05,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51db958b-1fbf-4760-a554-8b51e5d70c65/bin/uautomizer/witness.graphml [2019-11-20 03:02:05,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:02:05,052 INFO L168 Benchmark]: Toolchain (without parser) took 1336.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:02:05,053 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-20 03:02:05,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:02:05,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.57 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. [2019-11-20 03:02:05,055 INFO L168 Benchmark]: Boogie Preprocessor took 23.38 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:02:05,055 INFO L168 Benchmark]: RCFGBuilder took 271.25 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:02:05,056 INFO L168 Benchmark]: TraceAbstraction took 574.65 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:02:05,056 INFO L168 Benchmark]: Witness Printer took 45.95 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. [2019-11-20 03:02:05,059 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.57 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 23.38 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.25 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 574.65 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 45.95 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: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int SIZE=1; [L14] unsigned int j,k; [L15] int array[SIZE], menor; [L17] menor = __VERIFIER_nondet_int() [L19] j=0 [L19] COND TRUE j