./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/matrix_false-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_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/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 a06687718ac0cd281e66000f698ec14d3c3893e6 ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:45:39,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:45:39,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:45:39,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:45:39,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:45:39,575 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:45:39,575 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:45:39,576 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:45:39,577 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:45:39,578 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:45:39,579 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:45:39,579 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:45:39,579 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:45:39,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:45:39,581 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:45:39,581 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:45:39,582 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:45:39,583 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:45:39,584 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:45:39,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:45:39,586 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:45:39,587 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:45:39,588 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:45:39,588 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:45:39,589 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:45:39,589 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:45:39,590 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:45:39,590 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:45:39,591 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:45:39,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:45:39,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:45:39,592 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:45:39,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:45:39,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:45:39,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:45:39,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:45:39,594 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 15:45:39,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:45:39,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:45:39,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:45:39,603 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:45:39,603 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:45:39,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:45:39,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:45:39,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:45:39,605 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:45:39,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:45:39,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:45:39,606 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:45:39,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:45:39,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:45:39,607 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_842a4b10-fe1c-42a3-a06d-5de945a3628d/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 -> a06687718ac0cd281e66000f698ec14d3c3893e6 [2018-11-18 15:45:39,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:45:39,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:45:39,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:45:39,642 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:45:39,643 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:45:39,643 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-11-18 15:45:39,687 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/data/9f0029a32/c3cb78a2c3444b9ba745491548b48186/FLAG45926daa7 [2018-11-18 15:45:40,091 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:45:40,091 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-11-18 15:45:40,095 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/data/9f0029a32/c3cb78a2c3444b9ba745491548b48186/FLAG45926daa7 [2018-11-18 15:45:40,103 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/data/9f0029a32/c3cb78a2c3444b9ba745491548b48186 [2018-11-18 15:45:40,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:45:40,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:45:40,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:45:40,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:45:40,110 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:45:40,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b0db63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40, skipping insertion in model container [2018-11-18 15:45:40,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:45:40,133 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:45:40,239 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:45:40,242 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:45:40,255 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:45:40,265 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:45:40,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40 WrapperNode [2018-11-18 15:45:40,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:45:40,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:45:40,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:45:40,266 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:45:40,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:45:40,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:45:40,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:45:40,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:45:40,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:45:40,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:45:40,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:45:40,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:45:40,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:45:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/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 15:45:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:45:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:45:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:45:40,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:45:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:45:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:45:40,604 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:45:40,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:45:40 BoogieIcfgContainer [2018-11-18 15:45:40,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:45:40,604 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:45:40,604 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:45:40,611 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:45:40,611 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:45:40" (1/1) ... [2018-11-18 15:45:40,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:45:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:45:40,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2018-11-18 15:45:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2018-11-18 15:45:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:45:40,645 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:45:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:45:40,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:45:40,718 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 15:45:40,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:45:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-11-18 15:45:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-11-18 15:45:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:45:40,724 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:45:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:45:40,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:45:40,800 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 15:45:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:45:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2018-11-18 15:45:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2018-11-18 15:45:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:45:40,845 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:45:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:45:40,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:45:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:45:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:45:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2018-11-18 15:45:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2018-11-18 15:45:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:45:40,869 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:45:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:45:40,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:45:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:45:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:45:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2018-11-18 15:45:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-11-18 15:45:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 15:45:41,198 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:45:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:45:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:45:41,241 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-11-18 15:45:41,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:45:41 ImpRootNode [2018-11-18 15:45:41,263 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:45:41,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:45:41,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:45:41,263 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:45:41,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:45:40" (3/4) ... [2018-11-18 15:45:41,265 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 15:45:41,297 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_842a4b10-fe1c-42a3-a06d-5de945a3628d/bin-2019/ukojak/witness.graphml [2018-11-18 15:45:41,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:45:41,298 INFO L168 Benchmark]: Toolchain (without parser) took 1192.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.9 MB in the beginning and 1.0 GB in the end (delta: -58.0 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,299 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:45:41,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.30 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,299 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.94 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,300 INFO L168 Benchmark]: Boogie Preprocessor took 50.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,300 INFO L168 Benchmark]: RCFGBuilder took 260.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,301 INFO L168 Benchmark]: CodeCheck took 658.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.3 MB). Peak memory consumption was 93.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:45:41,301 INFO L168 Benchmark]: Witness Printer took 34.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:45:41,304 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, 24 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 70 SDslu, 56 SDs, 0 SdLazy, 218 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1342 SizeOfPredicates, 7 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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 - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L15] unsigned int N_COL=__VERIFIER_nondet_uint(); [L16] unsigned int j,k; [L17] FCALL int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 [L20] COND TRUE jmaior [L26] EXPR, FCALL matriz[j][k] [L26] maior = matriz[j][k] [L21] k++ [L21] COND FALSE !(k