./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o10_false-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o10_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/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 0c292d0c9d9c055df9398b3303a92d6621b60758 .................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-01 17:17:05,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:17:05,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:17:05,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:17:05,587 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:17:05,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:17:05,588 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:17:05,589 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:17:05,590 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:17:05,590 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:17:05,591 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:17:05,591 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:17:05,591 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:17:05,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:17:05,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:17:05,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:17:05,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:17:05,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:17:05,595 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:17:05,596 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:17:05,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:17:05,597 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:17:05,598 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:17:05,599 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:17:05,599 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:17:05,599 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:17:05,600 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:17:05,600 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:17:05,601 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:17:05,601 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:17:05,601 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:17:05,602 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:17:05,602 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:17:05,602 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:17:05,603 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:17:05,603 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:17:05,603 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-01 17:17:05,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:17:05,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:17:05,611 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 17:17:05,612 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 17:17:05,612 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:17:05,612 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:17:05,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:17:05,612 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 17:17:05,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:17:05,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 17:17:05,614 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 17:17:05,614 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 17:17:05,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:17:05,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 17:17:05,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 17:17:05,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:17:05,614 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 17:17:05,614 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 17:17:05,615 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 17:17:05,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 17:17:05,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 17:17:05,615 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_1211cffd-c892-403f-b804-680aa1ec6d2a/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 -> 0c292d0c9d9c055df9398b3303a92d6621b60758 [2018-12-01 17:17:05,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:17:05,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:17:05,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:17:05,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:17:05,642 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:17:05,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_o10_false-unreach-call_true-termination_true-no-overflow.c [2018-12-01 17:17:05,676 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/data/582091657/e0eea61c3e4c486d8fb36d263dec14a4/FLAGdc811092d [2018-12-01 17:17:06,121 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:17:06,121 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/sv-benchmarks/c/recursive-simple/id_o10_false-unreach-call_true-termination_true-no-overflow.c [2018-12-01 17:17:06,124 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/data/582091657/e0eea61c3e4c486d8fb36d263dec14a4/FLAGdc811092d [2018-12-01 17:17:06,132 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/data/582091657/e0eea61c3e4c486d8fb36d263dec14a4 [2018-12-01 17:17:06,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:17:06,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:17:06,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:17:06,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:17:06,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:17:06,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7084b22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06, skipping insertion in model container [2018-12-01 17:17:06,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:17:06,152 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:17:06,233 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:17:06,235 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 17:17:06,243 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:17:06,251 INFO L195 MainTranslator]: Completed translation [2018-12-01 17:17:06,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06 WrapperNode [2018-12-01 17:17:06,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 17:17:06,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 17:17:06,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 17:17:06,252 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 17:17:06,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 17:17:06,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 17:17:06,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 17:17:06,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 17:17:06,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 17:17:06,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 17:17:06,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 17:17:06,280 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 17:17:06,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/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 [2018-12-01 17:17:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 17:17:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 17:17:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-01 17:17:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-01 17:17:06,421 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 17:17:06,422 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-01 17:17:06,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:06 BoogieIcfgContainer [2018-12-01 17:17:06,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 17:17:06,422 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 17:17:06,422 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 17:17:06,431 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 17:17:06,431 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:06" (1/1) ... [2018-12-01 17:17:06,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:17:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-01 17:17:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-01 17:17:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 17:17:06,472 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:17:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-12-01 17:17:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-12-01 17:17:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 17:17:06,675 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 17:17:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-12-01 17:17:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-12-01 17:17:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 17:17:06,908 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:06,998 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-01 17:17:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2018-12-01 17:17:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-12-01 17:17:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 17:17:07,238 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-01 17:17:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2018-12-01 17:17:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-12-01 17:17:07,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-01 17:17:07,710 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-01 17:17:08,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2018-12-01 17:17:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-12-01 17:17:08,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-01 17:17:08,228 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-01 17:17:08,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2018-12-01 17:17:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-12-01 17:17:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-01 17:17:08,842 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-01 17:17:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2018-12-01 17:17:09,921 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-12-01 17:17:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-01 17:17:09,922 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-12-01 17:17:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2018-12-01 17:17:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-12-01 17:17:11,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-01 17:17:11,468 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-12-01 17:17:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions. [2018-12-01 17:17:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-12-01 17:17:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-01 17:17:12,432 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:17:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-12-01 17:17:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:17:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2018-12-01 17:17:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-12-01 17:17:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-01 17:17:13,481 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:17:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:17:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:17:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:17:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:17:16,200 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2018-12-01 17:17:16,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:17:16 ImpRootNode [2018-12-01 17:17:16,222 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 17:17:16,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 17:17:16,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 17:17:16,223 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 17:17:16,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:06" (3/4) ... [2018-12-01 17:17:16,225 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 17:17:16,262 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1211cffd-c892-403f-b804-680aa1ec6d2a/bin-2019/ukojak/witness.graphml [2018-12-01 17:17:16,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 17:17:16,263 INFO L168 Benchmark]: Toolchain (without parser) took 10128.33 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 351.3 MB). Free memory was 957.6 MB in the beginning and 1.3 GB in the end (delta: -321.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:17:16,264 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:17:16,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.00 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 949.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-01 17:17:16,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.31 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:17:16,265 INFO L168 Benchmark]: Boogie Preprocessor took 9.01 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:17:16,265 INFO L168 Benchmark]: RCFGBuilder took 141.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-01 17:17:16,266 INFO L168 Benchmark]: CodeCheck took 9799.83 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 215.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -169.2 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:17:16,266 INFO L168 Benchmark]: Witness Printer took 39.63 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2018-12-01 17:17:16,270 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 2 procedures, 15 locations, 1 error locations. UNSAFE Result, 9.7s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7168 SDtfs, 3068 SDslu, 5112 SDs, 0 SdLazy, 26584 SolverSat, 13292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2080 GetRequests, 1806 SyntacticMatches, 126 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7585 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 62248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 450/900 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: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=10] [L5] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L6] CALL, EXPR id(x-1) VAL [\old(x)=9] [L5] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L6] CALL, EXPR id(x-1) VAL [\old(x)=8] [L5] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L6] CALL, EXPR id(x-1) VAL [\old(x)=7] [L5] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L6] CALL, EXPR id(x-1) VAL [\old(x)=6] [L5] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L6] CALL, EXPR id(x-1) VAL [\old(x)=5] [L5] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L6] CALL, EXPR id(x-1) VAL [\old(x)=4] [L5] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L6] CALL, EXPR id(x-1) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 10 [L13] __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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.00 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 949.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.31 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.01 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 141.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * CodeCheck took 9799.83 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 215.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -169.2 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.63 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...