./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/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 0.1.23-5842f4b [2018-11-18 08:50:19,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:50:19,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:50:19,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:50:19,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:50:19,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:50:19,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:50:19,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:50:19,565 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:50:19,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:50:19,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:50:19,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:50:19,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:50:19,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:50:19,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:50:19,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:50:19,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:50:19,571 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:50:19,572 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:50:19,573 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:50:19,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:50:19,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:50:19,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:50:19,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:50:19,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:50:19,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:50:19,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:50:19,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:50:19,579 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:50:19,580 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:50:19,580 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:50:19,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:50:19,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:50:19,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:50:19,581 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:50:19,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:50:19,582 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 08:50:19,592 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:50:19,592 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:50:19,593 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:50:19,593 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:50:19,594 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:50:19,594 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:50:19,594 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:50:19,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:50:19,594 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:50:19,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:50:19,595 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:50:19,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:50:19,596 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 08:50:19,596 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 08:50:19,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:50:19,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:50:19,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 08:50:19,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:50:19,597 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:50:19,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:50:19,597 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 08:50:19,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:50:19,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:50:19,598 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/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 [2018-11-18 08:50:19,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:50:19,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:50:19,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:50:19,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:50:19,631 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:50:19,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-11-18 08:50:19,669 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/data/74b77d2e3/4e87ad55180948759639adbeaeb8bb15/FLAG14f2c6209 [2018-11-18 08:50:20,055 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:50:20,055 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/sv-benchmarks/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-11-18 08:50:20,059 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/data/74b77d2e3/4e87ad55180948759639adbeaeb8bb15/FLAG14f2c6209 [2018-11-18 08:50:20,068 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/data/74b77d2e3/4e87ad55180948759639adbeaeb8bb15 [2018-11-18 08:50:20,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:50:20,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:50:20,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:50:20,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:50:20,075 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:50:20,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55626f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20, skipping insertion in model container [2018-11-18 08:50:20,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:50:20,095 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:50:20,192 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:50:20,194 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:50:20,204 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:50:20,212 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:50:20,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20 WrapperNode [2018-11-18 08:50:20,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:50:20,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:50:20,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:50:20,213 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:50:20,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:50:20,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:50:20,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:50:20,240 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:50:20,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:50:20,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:50:20,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:50:20,256 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:50:20,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/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 [2018-11-18 08:50:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:50:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:50:20,481 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:50:20,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:20 BoogieIcfgContainer [2018-11-18 08:50:20,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:50:20,482 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 08:50:20,482 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 08:50:20,491 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 08:50:20,491 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:20" (1/1) ... [2018-11-18 08:50:20,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:50:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:20,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-11-18 08:50:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-11-18 08:50:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 08:50:20,536 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:50:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2018-11-18 08:50:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2018-11-18 08:50:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 08:50:20,770 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:50:21,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2018-11-18 08:50:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2018-11-18 08:50:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 08:50:21,004 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:50:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2018-11-18 08:50:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2018-11-18 08:50:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 08:50:21,369 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:21,549 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:50:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 64 transitions. [2018-11-18 08:50:22,370 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2018-11-18 08:50:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 08:50:22,373 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 08:50:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 62 transitions. [2018-11-18 08:50:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2018-11-18 08:50:22,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 08:50:22,527 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 08:50:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 45 states and 75 transitions. [2018-11-18 08:50:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2018-11-18 08:50:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 08:50:23,243 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 08:50:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:50:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 08:50:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 08:50:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 52 transitions. [2018-11-18 08:50:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2018-11-18 08:50:23,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:50:23,430 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-11-18 08:50:23,438 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 08:50:23,525 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 08:50:23,527 INFO L579 CodeCheckObserver]: Invariant with dag size 6 [2018-11-18 08:50:23,531 INFO L579 CodeCheckObserver]: Invariant with dag size 10 [2018-11-18 08:50:23,532 INFO L579 CodeCheckObserver]: Invariant with dag size 15 [2018-11-18 08:50:23,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 08:50:23 ImpRootNode [2018-11-18 08:50:23,533 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 08:50:23,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:50:23,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:50:23,533 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:50:23,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:20" (3/4) ... [2018-11-18 08:50:23,536 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:50:23,542 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 08:50:23,542 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 08:50:23,542 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 08:50:23,570 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71cf5f28-fcf7-42ef-87a8-93fd701df5e7/bin-2019/ukojak/witness.graphml [2018-11-18 08:50:23,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:50:23,571 INFO L168 Benchmark]: Toolchain (without parser) took 3499.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 282.6 MB). Free memory was 956.4 MB in the beginning and 1.3 GB in the end (delta: -293.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:50:23,572 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:50:23,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.13 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:50:23,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.71 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:50:23,573 INFO L168 Benchmark]: Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:50:23,573 INFO L168 Benchmark]: RCFGBuilder took 225.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:50:23,574 INFO L168 Benchmark]: CodeCheck took 3051.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -107.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:50:23,574 INFO L168 Benchmark]: Witness Printer took 37.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2018-11-18 08:50:23,577 INFO L336 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, 20 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 896 SDtfs, 1232 SDslu, 1080 SDs, 0 SdLazy, 4742 SolverSat, 1226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1131 GetRequests, 969 SyntacticMatches, 52 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4222 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 6486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 29/65 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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: 3]: Loop Invariant Derived loop invariant: 1 <= i && 1 <= l - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (1 <= l || n + 1 <= l + k) || n <= l - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((n <= l && i < 1) && n <= i) || (l < i && 1 <= l)) || (1 <= i && i <= l) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.13 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.71 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 225.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 3051.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -107.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...