./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/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 59c5766d3cddc0d41e2678bb5221cccc60217431 ......................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 03:44:48,604 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:44:48,605 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:44:48,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:44:48,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:44:48,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:44:48,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:44:48,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:44:48,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:44:48,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:44:48,618 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:44:48,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:44:48,618 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:44:48,619 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:44:48,620 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:44:48,620 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:44:48,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:44:48,622 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:44:48,623 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:44:48,624 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:44:48,625 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:44:48,626 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:44:48,628 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:44:48,628 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:44:48,628 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:44:48,629 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:44:48,629 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:44:48,630 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:44:48,631 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:44:48,631 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:44:48,632 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:44:48,632 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:44:48,632 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:44:48,632 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:44:48,633 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:44:48,634 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:44:48,634 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 03:44:48,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:44:48,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:44:48,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:44:48,644 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:44:48,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:44:48,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:44:48,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:44:48,645 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:44:48,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:44:48,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:44:48,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:44:48,647 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:44:48,647 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 03:44:48,647 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 03:44:48,647 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:44:48,647 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:44:48,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 03:44:48,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:44:48,648 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:44:48,648 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:44:48,648 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 03:44:48,648 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:44:48,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:44:48,648 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_bead482c-c0ee-4749-bfa6-3c94b55e8b73/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 -> 59c5766d3cddc0d41e2678bb5221cccc60217431 [2018-11-10 03:44:48,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:44:48,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:44:48,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:44:48,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:44:48,682 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:44:48,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id2_i5_o5_false-unreach-call_true-termination.c [2018-11-10 03:44:48,717 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/data/a63523e74/c5da9a5513ff43098a1d214d4e0ef713/FLAG5628e7116 [2018-11-10 03:44:49,108 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:44:49,108 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/sv-benchmarks/c/recursive-simple/id2_i5_o5_false-unreach-call_true-termination.c [2018-11-10 03:44:49,112 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/data/a63523e74/c5da9a5513ff43098a1d214d4e0ef713/FLAG5628e7116 [2018-11-10 03:44:49,120 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/data/a63523e74/c5da9a5513ff43098a1d214d4e0ef713 [2018-11-10 03:44:49,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:44:49,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:44:49,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:44:49,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:44:49,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:44:49,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8b0baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49, skipping insertion in model container [2018-11-10 03:44:49,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:44:49,144 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:44:49,237 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:44:49,239 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:44:49,247 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:44:49,255 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:44:49,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49 WrapperNode [2018-11-10 03:44:49,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:44:49,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:44:49,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:44:49,256 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:44:49,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:44:49,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:44:49,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:44:49,274 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:44:49,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:44:49,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:44:49,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:44:49,284 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:44:49,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:44:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/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 [2018-11-10 03:44:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2018-11-10 03:44:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2018-11-10 03:44:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:44:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:44:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-10 03:44:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-10 03:44:49,474 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:44:49,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:44:49 BoogieIcfgContainer [2018-11-10 03:44:49,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:44:49,474 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 03:44:49,475 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 03:44:49,484 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 03:44:49,484 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:44:49" (1/1) ... [2018-11-10 03:44:49,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:44:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-11-10 03:44:49,529 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 03:44:49,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 03:44:49,534 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:44:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:44:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 25 transitions. [2018-11-10 03:44:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-11-10 03:44:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 03:44:49,734 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:44:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:44:49,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 32 transitions. [2018-11-10 03:44:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-11-10 03:44:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 03:44:49,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:44:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 03:44:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 43 transitions. [2018-11-10 03:44:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2018-11-10 03:44:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 03:44:50,149 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:44:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 03:44:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 46 states and 67 transitions. [2018-11-10 03:44:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2018-11-10 03:44:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 03:44:51,182 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:44:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 03:44:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:44:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 52 states and 80 transitions. [2018-11-10 03:44:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions. [2018-11-10 03:44:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 03:44:51,741 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:44:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:44:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:44:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:44:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:44:51,798 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 03:44:51,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 03:44:51 ImpRootNode [2018-11-10 03:44:51,824 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 03:44:51,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:44:51,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:44:51,824 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:44:51,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:44:49" (3/4) ... [2018-11-10 03:44:51,827 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 03:44:51,872 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bead482c-c0ee-4749-bfa6-3c94b55e8b73/bin-2019/ukojak/witness.graphml [2018-11-10 03:44:51,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:44:51,873 INFO L168 Benchmark]: Toolchain (without parser) took 2750.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:44:51,875 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:44:51,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.03 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:44:51,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.67 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:44:51,876 INFO L168 Benchmark]: Boogie Preprocessor took 9.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:44:51,877 INFO L168 Benchmark]: RCFGBuilder took 190.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:44:51,878 INFO L168 Benchmark]: CodeCheck took 2349.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -39.1 MB). Peak memory consumption was 789.4 kB. Max. memory is 11.5 GB. [2018-11-10 03:44:51,879 INFO L168 Benchmark]: Witness Printer took 48.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:44:51,883 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 3 procedures, 22 locations, 1 error locations. UNSAFE Result, 2.2s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 320 SDtfs, 304 SDslu, 488 SDs, 0 SdLazy, 1490 SolverSat, 394 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1055 GetRequests, 940 SyntacticMatches, 27 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1999 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 5448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 17/34 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: 21]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L18] int input = 5; [L19] CALL, EXPR id(input) VAL [\old(x)=5] [L8] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L9] CALL, EXPR id2(x-1) VAL [\old(x)=4] [L13] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L14] CALL, EXPR id(x-1) VAL [\old(x)=3] [L8] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L9] CALL, EXPR id2(x-1) VAL [\old(x)=2] [L13] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L14] CALL, EXPR id(x-1) VAL [\old(x)=1] [L8] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L9] CALL, EXPR id2(x-1) VAL [\old(x)=0] [L13] COND TRUE x==0 [L13] RET return 0; VAL [\old(x)=0, \result=0, x=0] [L9] EXPR id2(x-1) VAL [\old(x)=1, id2(x-1)=0, x=1] [L9] RET return id2(x-1) + 1; [L14] EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L14] RET return id(x-1) + 1; [L9] EXPR id2(x-1) VAL [\old(x)=3, id2(x-1)=2, x=3] [L9] RET return id2(x-1) + 1; [L14] EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L14] RET return id(x-1) + 1; [L9] EXPR id2(x-1) VAL [\old(x)=5, id2(x-1)=4, x=5] [L9] RET return id2(x-1) + 1; [L19] EXPR id(input) [L19] int result = id(input); [L20] COND TRUE result == 5 [L21] __VERIFIER_error() * 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.03 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 17.67 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * CodeCheck took 2349.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -39.1 MB). Peak memory consumption was 789.4 kB. Max. memory is 11.5 GB. * Witness Printer took 48.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...