./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3.i --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_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/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 67bb0790f696b3c18eb630bed2fc34fee971c82b ........................................................................................................................................................................................................................................................... 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 05:39:32,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 05:39:32,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 05:39:32,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 05:39:32,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 05:39:32,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 05:39:32,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 05:39:32,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 05:39:32,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 05:39:32,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 05:39:32,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 05:39:32,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 05:39:32,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 05:39:32,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 05:39:32,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 05:39:32,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 05:39:32,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 05:39:32,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 05:39:32,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 05:39:32,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 05:39:32,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 05:39:32,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 05:39:32,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 05:39:32,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 05:39:32,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 05:39:32,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 05:39:32,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 05:39:32,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 05:39:32,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 05:39:32,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 05:39:32,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 05:39:32,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 05:39:32,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 05:39:32,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 05:39:32,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 05:39:32,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 05:39:32,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 05:39:32,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 05:39:32,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 05:39:32,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 05:39:32,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 05:39:32,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-02 05:39:32,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 05:39:32,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 05:39:32,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 05:39:32,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 05:39:32,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 05:39:32,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 05:39:32,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 05:39:32,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 05:39:32,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 05:39:32,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 05:39:32,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 05:39:32,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 05:39:32,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 05:39:32,473 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 05:39:32,473 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 05:39:32,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 05:39:32,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 05:39:32,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 05:39:32,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 05:39:32,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 05:39:32,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 05:39:32,474 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 05:39:32,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 05:39:32,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 05:39:32,474 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_887a6796-ac65-463d-b141-016942644b6c/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 -> 67bb0790f696b3c18eb630bed2fc34fee971c82b [2019-12-02 05:39:32,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 05:39:32,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 05:39:32,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 05:39:32,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 05:39:32,583 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 05:39:32,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/../../sv-benchmarks/c/loop-invgen/nest-if3.i [2019-12-02 05:39:32,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/data/c4ba84dca/49d6f86d0c414204903063135c4c9b94/FLAGc57eeb89f [2019-12-02 05:39:32,935 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 05:39:32,935 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/sv-benchmarks/c/loop-invgen/nest-if3.i [2019-12-02 05:39:32,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/data/c4ba84dca/49d6f86d0c414204903063135c4c9b94/FLAGc57eeb89f [2019-12-02 05:39:32,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/data/c4ba84dca/49d6f86d0c414204903063135c4c9b94 [2019-12-02 05:39:32,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 05:39:32,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 05:39:32,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 05:39:32,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 05:39:32,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 05:39:32,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:32" (1/1) ... [2019-12-02 05:39:32,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5947b845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:32, skipping insertion in model container [2019-12-02 05:39:32,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:32" (1/1) ... [2019-12-02 05:39:32,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 05:39:32,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 05:39:33,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 05:39:33,070 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 05:39:33,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 05:39:33,128 INFO L208 MainTranslator]: Completed translation [2019-12-02 05:39:33,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33 WrapperNode [2019-12-02 05:39:33,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 05:39:33,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 05:39:33,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 05:39:33,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 05:39:33,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 05:39:33,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 05:39:33,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 05:39:33,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 05:39:33,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 05:39:33,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 05:39:33,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 05:39:33,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 05:39:33,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/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 05:39:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 05:39:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 05:39:33,344 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 05:39:33,344 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-02 05:39:33,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:33 BoogieIcfgContainer [2019-12-02 05:39:33,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 05:39:33,345 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 05:39:33,345 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 05:39:33,352 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 05:39:33,352 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:33" (1/1) ... [2019-12-02 05:39:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 05:39:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2019-12-02 05:39:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2019-12-02 05:39:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 05:39:33,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:33,494 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 05:39:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2019-12-02 05:39:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2019-12-02 05:39:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 05:39:33,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 05:39:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2019-12-02 05:39:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2019-12-02 05:39:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-02 05:39:33,892 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:33,926 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 05:39:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2019-12-02 05:39:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2019-12-02 05:39:34,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 05:39:34,022 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 05:39:34,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:34,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 20 states and 42 transitions. [2019-12-02 05:39:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 42 transitions. [2019-12-02 05:39:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 05:39:34,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 05:39:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 24 states and 55 transitions. [2019-12-02 05:39:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 55 transitions. [2019-12-02 05:39:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 05:39:34,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-02 05:39:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 25 states and 56 transitions. [2019-12-02 05:39:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 56 transitions. [2019-12-02 05:39:35,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 05:39:35,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 05:39:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 05:39:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-02 05:39:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 05:39:36,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 19 states and 38 transitions. [2019-12-02 05:39:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 38 transitions. [2019-12-02 05:39:36,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-02 05:39:36,288 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2019-12-02 05:39:36,294 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-12-02 05:39:36,386 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-02 05:39:36,389 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2019-12-02 05:39:36,394 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2019-12-02 05:39:36,395 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2019-12-02 05:39:36,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 05:39:36 ImpRootNode [2019-12-02 05:39:36,395 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 05:39:36,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 05:39:36,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 05:39:36,396 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 05:39:36,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:33" (3/4) ... [2019-12-02 05:39:36,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-02 05:39:36,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-02 05:39:36,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-02 05:39:36,438 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_887a6796-ac65-463d-b141-016942644b6c/bin/ukojak/witness.graphml [2019-12-02 05:39:36,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 05:39:36,439 INFO L168 Benchmark]: Toolchain (without parser) took 3488.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.8 MB in the beginning and 1.0 GB in the end (delta: -70.3 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. [2019-12-02 05:39:36,439 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 05:39:36,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-02 05:39:36,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.32 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 05:39:36,440 INFO L168 Benchmark]: Boogie Preprocessor took 14.63 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 05:39:36,441 INFO L168 Benchmark]: RCFGBuilder took 176.86 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 05:39:36,441 INFO L168 Benchmark]: CodeCheck took 3050.73 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.6 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2019-12-02 05:39:36,441 INFO L168 Benchmark]: Witness Printer took 41.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-12-02 05:39:36,443 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, 12 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 640 SDtfs, 498 SDslu, 128 SDs, 0 SdLazy, 4832 SolverSat, 1034 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 951 GetRequests, 823 SyntacticMatches, 28 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3504 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 10/36 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((1 <= i && l + k < i + 1) && n + 2 <= l + k) || (((1 <= i && k < 1) && l + k < i + 1) && i <= l + k)) || ((1 <= i && 1 <= k) && 1 <= l)) || ((1 <= i && 1 <= l) && l + k < i) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((1 <= i && 1 <= l) && l + k < i + 1) || ((1 <= i && 1 <= k) && 1 <= l) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 <= l || n + 2 <= l + k * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.32 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 14.63 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 176.86 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 3050.73 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 38.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.6 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * Witness Printer took 41.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...