./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40.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_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1154acb41caa49c0da18a0d5cc92ede9101ff854 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-02 01:16:04,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 01:16:04,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 01:16:04,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 01:16:04,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 01:16:04,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 01:16:04,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 01:16:04,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 01:16:04,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 01:16:04,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 01:16:04,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 01:16:04,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 01:16:04,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 01:16:04,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 01:16:04,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 01:16:04,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 01:16:04,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 01:16:04,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 01:16:04,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 01:16:04,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 01:16:04,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 01:16:04,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 01:16:04,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 01:16:04,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 01:16:04,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 01:16:04,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 01:16:04,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 01:16:04,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 01:16:04,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 01:16:04,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 01:16:04,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 01:16:04,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 01:16:04,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 01:16:04,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 01:16:04,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 01:16:04,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 01:16:04,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 01:16:04,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 01:16:04,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 01:16:04,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 01:16:04,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 01:16:04,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-02 01:16:04,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 01:16:04,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 01:16:04,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 01:16:04,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 01:16:04,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 01:16:04,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 01:16:04,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 01:16:04,954 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 01:16:04,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 01:16:04,956 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 01:16:04,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 01:16:04,956 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 01:16:04,956 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 01:16:04,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 01:16:04,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 01:16:04,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 01:16:04,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 01:16:04,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 01:16:04,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 01:16:04,957 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 01:16:04,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 01:16:04,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 01:16:04,957 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_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak 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 -> Kojak 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 -> 1154acb41caa49c0da18a0d5cc92ede9101ff854 [2019-12-02 01:16:05,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 01:16:05,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 01:16:05,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 01:16:05,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 01:16:05,063 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 01:16:05,064 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/../../sv-benchmarks/c/loops/nec40.c [2019-12-02 01:16:05,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/data/ec3764a4b/14364ae451d3416ca5c268225cdfc00b/FLAGd7f38965e [2019-12-02 01:16:05,489 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 01:16:05,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/sv-benchmarks/c/loops/nec40.c [2019-12-02 01:16:05,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/data/ec3764a4b/14364ae451d3416ca5c268225cdfc00b/FLAGd7f38965e [2019-12-02 01:16:05,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/data/ec3764a4b/14364ae451d3416ca5c268225cdfc00b [2019-12-02 01:16:05,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 01:16:05,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 01:16:05,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 01:16:05,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 01:16:05,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 01:16:05,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaa2f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05, skipping insertion in model container [2019-12-02 01:16:05,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 01:16:05,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 01:16:05,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:16:05,672 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 01:16:05,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:16:05,705 INFO L208 MainTranslator]: Completed translation [2019-12-02 01:16:05,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05 WrapperNode [2019-12-02 01:16:05,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 01:16:05,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 01:16:05,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 01:16:05,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 01:16:05,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 01:16:05,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 01:16:05,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 01:16:05,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 01:16:05,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 01:16:05,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 01:16:05,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 01:16:05,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 01:16:05,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-12-02 01:16:05,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-02 01:16:05,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 01:16:05,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 01:16:05,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-02 01:16:05,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-02 01:16:05,941 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 01:16:05,941 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-02 01:16:05,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:05 BoogieIcfgContainer [2019-12-02 01:16:05,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 01:16:05,943 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 01:16:05,943 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 01:16:05,951 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 01:16:05,951 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:05" (1/1) ... [2019-12-02 01:16:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 01:16:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:16:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2019-12-02 01:16:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2019-12-02 01:16:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 01:16:05,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:16:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:16:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:16:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:16:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-12-02 01:16:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-02 01:16:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 01:16:06,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:16:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:16:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:16:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:16:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2019-12-02 01:16:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2019-12-02 01:16:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 01:16:06,211 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:16:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:16:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:16:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:16:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-02 01:16:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-02 01:16:06,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-02 01:16:06,430 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2019-12-02 01:16:06,437 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-12-02 01:16:06,458 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2019-12-02 01:16:06,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,468 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-02 01:16:06,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:16:06 ImpRootNode [2019-12-02 01:16:06,468 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 01:16:06,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 01:16:06,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 01:16:06,469 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 01:16:06,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:05" (3/4) ... [2019-12-02 01:16:06,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-02 01:16:06,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-02 01:16:06,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-02 01:16:06,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-02 01:16:06,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9407cd78-fd4b-4e60-98c4-34e84b78fc0f/bin/ukojak/witness.graphml [2019-12-02 01:16:06,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 01:16:06,511 INFO L168 Benchmark]: Toolchain (without parser) took 1005.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 939.3 MB in the beginning and 977.9 MB in the end (delta: -38.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-12-02 01:16:06,511 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:16:06,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-02 01:16:06,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:16:06,512 INFO L168 Benchmark]: Boogie Preprocessor took 15.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:16:06,512 INFO L168 Benchmark]: RCFGBuilder took 195.21 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-02 01:16:06,512 INFO L168 Benchmark]: CodeCheck took 525.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2019-12-02 01:16:06,513 INFO L168 Benchmark]: Witness Printer took 40.75 ms. Allocated memory is still 1.1 GB. Free memory was 983.3 MB in the beginning and 977.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-02 01:16:06,514 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 18 SDslu, 8 SDs, 0 SdLazy, 120 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2019-12-02 01:16:06,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-02 01:16:06,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (k == i || 0 == unknown-#memory_int-unknown[y][y + k]) && 0 == unknown-#memory_int-unknown[x][i + x] - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.21 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * CodeCheck took 525.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.3 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.75 ms. Allocated memory is still 1.1 GB. Free memory was 983.3 MB in the beginning and 977.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int RESULT: Ultimate proved your program to be correct! Received shutdown request...