./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.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_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ......................................................................................................................................................................................................................................................................................................... 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 01:45:58,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 01:45:58,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 01:45:58,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 01:45:58,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 01:45:58,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 01:45:58,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 01:45:58,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 01:45:58,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 01:45:58,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 01:45:58,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 01:45:58,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 01:45:58,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 01:45:58,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 01:45:58,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 01:45:58,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 01:45:58,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 01:45:58,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 01:45:58,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 01:45:58,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 01:45:58,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 01:45:58,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 01:45:58,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 01:45:58,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 01:45:58,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 01:45:58,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 01:45:58,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 01:45:58,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 01:45:58,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 01:45:58,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 01:45:58,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 01:45:58,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 01:45:58,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 01:45:58,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 01:45:58,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 01:45:58,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 01:45:58,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 01:45:58,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 01:45:58,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 01:45:58,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 01:45:58,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 01:45:58,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-02 01:45:58,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 01:45:58,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 01:45:58,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 01:45:58,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 01:45:58,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 01:45:58,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 01:45:58,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 01:45:58,646 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 01:45:58,647 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 01:45:58,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 01:45:58,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 01:45:58,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 01:45:58,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 01:45:58,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 01:45:58,648 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 01:45:58,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 01:45:58,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 01:45:58,648 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_e2415733-5cdf-4ec8-af55-34fa57e65803/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-12-02 01:45:58,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 01:45:58,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 01:45:58,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 01:45:58,758 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 01:45:58,758 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 01:45:58,759 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-12-02 01:45:58,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/data/454001384/e10a6ce76e1b4c938a5c00cb420dc315/FLAG3fec2914f [2019-12-02 01:45:59,113 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 01:45:59,114 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-12-02 01:45:59,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/data/454001384/e10a6ce76e1b4c938a5c00cb420dc315/FLAG3fec2914f [2019-12-02 01:45:59,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/data/454001384/e10a6ce76e1b4c938a5c00cb420dc315 [2019-12-02 01:45:59,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 01:45:59,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 01:45:59,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 01:45:59,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 01:45:59,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 01:45:59,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4098f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59, skipping insertion in model container [2019-12-02 01:45:59,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 01:45:59,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 01:45:59,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:45:59,290 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 01:45:59,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:45:59,319 INFO L208 MainTranslator]: Completed translation [2019-12-02 01:45:59,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59 WrapperNode [2019-12-02 01:45:59,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 01:45:59,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 01:45:59,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 01:45:59,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 01:45:59,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 01:45:59,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 01:45:59,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 01:45:59,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 01:45:59,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 01:45:59,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 01:45:59,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 01:45:59,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 01:45:59,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:45:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/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 01:45:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 01:45:59,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 01:45:59,523 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 01:45:59,524 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-02 01:45:59,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:45:59 BoogieIcfgContainer [2019-12-02 01:45:59,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 01:45:59,525 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 01:45:59,525 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 01:45:59,532 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 01:45:59,532 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:45:59" (1/1) ... [2019-12-02 01:45:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 01:45:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:45:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2019-12-02 01:45:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2019-12-02 01:45:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 01:45:59,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:45:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:45:59,662 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 01:45:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:45:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2019-12-02 01:45:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-12-02 01:45:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 01:45:59,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:45:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:45:59,732 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 01:45:59,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:45:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-12-02 01:45:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-02 01:45:59,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:45:59,869 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:45:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:45:59,931 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 01:46:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2019-12-02 01:46:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-12-02 01:46:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-02 01:46:00,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-12-02 01:46:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-12-02 01:46:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:46:00,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-12-02 01:46:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-12-02 01:46:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:46:00,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-02 01:46:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-12-02 01:46:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-12-02 01:46:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:46:01,080 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:01,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2019-12-02 01:46:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-12-02 01:46:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-02 01:46:01,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2019-12-02 01:46:02,106 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-12-02 01:46:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-02 01:46:02,107 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 32 states and 36 transitions. [2019-12-02 01:46:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-12-02 01:46:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-02 01:46:02,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2019-12-02 01:46:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-12-02 01:46:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-02 01:46:03,273 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2019-12-02 01:46:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-12-02 01:46:03,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-02 01:46:03,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:46:04,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 44 states and 47 transitions. [2019-12-02 01:46:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-12-02 01:46:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-02 01:46:04,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:46:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:46:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-12-02 01:46:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:46:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2019-12-02 01:46:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-12-02 01:46:04,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-02 01:46:04,932 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2019-12-02 01:46:04,938 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2019-12-02 01:46:05,009 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-02 01:46:05,012 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-12-02 01:46:05,016 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2019-12-02 01:46:05,016 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2019-12-02 01:46:05,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:46:05 ImpRootNode [2019-12-02 01:46:05,017 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 01:46:05,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 01:46:05,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 01:46:05,017 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 01:46:05,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:45:59" (3/4) ... [2019-12-02 01:46:05,020 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-02 01:46:05,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-02 01:46:05,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-02 01:46:05,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e2415733-5cdf-4ec8-af55-34fa57e65803/bin/ukojak/witness.graphml [2019-12-02 01:46:05,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 01:46:05,063 INFO L168 Benchmark]: Toolchain (without parser) took 5932.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 942.5 MB in the beginning and 966.5 MB in the end (delta: -24.0 MB). Peak memory consumption was 144.8 MB. Max. memory is 11.5 GB. [2019-12-02 01:46:05,064 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:46:05,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-02 01:46:05,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.31 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 01:46:05,064 INFO L168 Benchmark]: Boogie Preprocessor took 12.26 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 01:46:05,065 INFO L168 Benchmark]: RCFGBuilder took 165.65 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 01:46:05,065 INFO L168 Benchmark]: CodeCheck took 5492.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 975.7 MB in the end (delta: 107.9 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. [2019-12-02 01:46:05,065 INFO L168 Benchmark]: Witness Printer took 44.50 ms. Allocated memory is still 1.2 GB. Free memory was 975.7 MB in the beginning and 966.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-12-02 01:46:05,067 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, 17 locations, 3 error locations. Result: SAFE, OverallTime: 5.3s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27136 SDtfs, 46954 SDslu, 12288 SDs, 0 SdLazy, 241714 SolverSat, 66300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2147 GetRequests, 1854 SyntacticMatches, 139 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8117 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 17360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 237/450 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: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.31 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 12.26 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 165.65 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 5492.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 975.7 MB in the end (delta: 107.9 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.50 ms. Allocated memory is still 1.2 GB. Free memory was 975.7 MB in the beginning and 966.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...