./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum04-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/sum04-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4783c6ee2901b631023e80ae57ac531c222bf81 .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:39:31,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:39:31,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:39:31,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:39:31,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:39:31,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:39:31,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:39:31,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:39:31,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:39:31,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:39:31,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:39:31,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:39:31,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:39:31,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:39:31,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:39:31,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:39:31,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:39:31,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:39:31,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:39:31,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:39:31,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:39:31,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:39:31,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:39:31,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:39:31,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:39:31,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:39:31,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:39:31,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:39:31,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:39:31,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:39:31,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:39:31,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:39:31,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:39:31,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:39:31,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:39:31,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:39:31,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:39:31,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:39:31,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:39:31,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:39:31,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:39:31,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 18:39:31,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:39:31,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:39:31,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 18:39:31,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 18:39:31,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:39:31,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:39:31,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:39:31,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:39:31,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:39:31,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:39:31,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:39:31,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:39:31,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:39:31,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:39:31,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:39:31,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:39:31,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:39:31,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:39:31,548 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 18:39:31,548 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 18:39:31,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:39:31,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:39:31,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:39:31,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:39:31,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:39:31,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:39:31,550 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 18:39:31,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:39:31,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:39:31,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4783c6ee2901b631023e80ae57ac531c222bf81 [2020-11-29 18:39:31,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:39:31,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:39:31,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:39:31,918 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:39:31,920 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:39:31,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/../../sv-benchmarks/c/loops/sum04-2.i [2020-11-29 18:39:32,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/data/52829ae25/765304d65105474599a59a4ad097bb4a/FLAG81bfa649d [2020-11-29 18:39:32,582 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:39:32,583 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/sv-benchmarks/c/loops/sum04-2.i [2020-11-29 18:39:32,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/data/52829ae25/765304d65105474599a59a4ad097bb4a/FLAG81bfa649d [2020-11-29 18:39:32,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/data/52829ae25/765304d65105474599a59a4ad097bb4a [2020-11-29 18:39:32,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:39:32,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:39:32,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:32,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:39:32,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:39:32,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:32" (1/1) ... [2020-11-29 18:39:32,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5c452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:32, skipping insertion in model container [2020-11-29 18:39:32,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:32" (1/1) ... [2020-11-29 18:39:32,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:39:32,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:39:33,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:33,204 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:39:33,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:33,241 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:39:33,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33 WrapperNode [2020-11-29 18:39:33,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:33,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:33,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:39:33,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:39:33,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:33,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:39:33,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:39:33,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:39:33,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:39:33,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:39:33,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:39:33,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:39:33,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/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 [2020-11-29 18:39:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:39:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:39:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:39:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:39:33,678 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:39:33,678 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:39:33,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:33 BoogieIcfgContainer [2020-11-29 18:39:33,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:39:33,682 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 18:39:33,682 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 18:39:33,693 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 18:39:33,694 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:33" (1/1) ... [2020-11-29 18:39:33,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 18:39:33,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 18:39:33,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:39:33,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-11-29 18:39:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-29 18:39:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:39:34,128 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-29 18:39:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-29 18:39:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:39:34,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-29 18:39:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-29 18:39:34,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:39:34,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-29 18:39:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 18:39:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:39:34,661 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-29 18:39:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-29 18:39:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:39:34,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-29 18:39:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 18:39:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:39:34,953 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:35,048 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:35,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-11-29 18:39:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-29 18:39:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:39:35,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-29 18:39:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-29 18:39:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:39:35,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2020-11-29 18:39:38,253 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-29 18:39:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:39:38,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:39:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 37 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:38,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:39:38,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2020-11-29 18:39:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-11-29 18:39:38,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:39:38,725 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-11-29 18:39:38,732 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 18:39:38,821 INFO L569 CodeCheckObserver]: Invariant with dag size 59 [2020-11-29 18:39:38,834 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 18:39:38,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 06:39:38 ImpRootNode [2020-11-29 18:39:38,835 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 18:39:38,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:39:38,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:39:38,836 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:39:38,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:33" (3/4) ... [2020-11-29 18:39:38,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:39:38,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 18:39:38,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 18:39:38,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:39:38,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:39:38,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dd65acd0-e806-40bf-80fb-1a874a1f0c6e/bin/ukojak/witness.graphml [2020-11-29 18:39:38,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:39:38,898 INFO L168 Benchmark]: Toolchain (without parser) took 5941.09 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 95.4 MB in the beginning and 84.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 73.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,899 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 119.5 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:39:38,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.89 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 94.9 MB in the beginning and 129.4 MB in the end (delta: -34.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.04 ms. Allocated memory is still 153.1 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,901 INFO L168 Benchmark]: Boogie Preprocessor took 21.96 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 127.4 MB in the end (delta: 750.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:39:38,902 INFO L168 Benchmark]: RCFGBuilder took 376.79 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 113.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,903 INFO L168 Benchmark]: CodeCheck took 5153.47 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 113.4 MB in the beginning and 86.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,904 INFO L168 Benchmark]: Witness Printer took 60.14 ms. Allocated memory is still 184.5 MB. Free memory was 86.6 MB in the beginning and 84.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:39:38,908 INFO L339 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 7842 SolverSat, 5706 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 709 GetRequests, 582 SyntacticMatches, 35 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3630 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 37/165 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: 12]: 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: 24]: Loop Invariant Derived loop invariant: ((((((((((7 < i && 14 <= sn) && sn <= 14) && i <= 8) || (((10 <= sn && i <= 6) && sn <= 10) && 5 < i)) || (((2 <= i && 2 <= sn) && i <= 2) && sn <= 2)) || (((i <= 3 && sn <= 4) && 4 <= sn) && 2 < i)) || (((3 < i && sn <= 6) && 6 <= sn) && i <= 4)) || (i == 1 && sn == 0)) || (((sn <= 12 && 12 <= sn) && 6 < i) && i <= 7)) || (((i <= 5 && sn <= 8) && 4 < i) && 8 <= sn)) || ((8 < i && sn <= 16) && 15 < sn) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 119.5 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.89 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 94.9 MB in the beginning and 129.4 MB in the end (delta: -34.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.04 ms. Allocated memory is still 153.1 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.96 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 127.4 MB in the end (delta: 750.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.79 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 113.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 5153.47 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 113.4 MB in the beginning and 86.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. * Witness Printer took 60.14 ms. Allocated memory is still 184.5 MB. Free memory was 86.6 MB in the beginning and 84.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...