./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i --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_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/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 0ab550a6e9aa370752671d7ad69781384c889e75 ..................................................................................................................................................................................................................................................... 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 [2018-12-09 19:09:17,374 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:09:17,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:09:17,381 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:09:17,381 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:09:17,381 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:09:17,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:09:17,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:09:17,383 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:09:17,384 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:09:17,384 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:09:17,384 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:09:17,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:09:17,385 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:09:17,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:09:17,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:09:17,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:09:17,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:09:17,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:09:17,389 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:09:17,390 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:09:17,391 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:09:17,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:09:17,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:09:17,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:09:17,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:09:17,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:09:17,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:09:17,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:09:17,396 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:09:17,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:09:17,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:09:17,397 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:09:17,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:09:17,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:09:17,397 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:09:17,398 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 19:09:17,404 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:09:17,405 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:09:17,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:09:17,405 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 19:09:17,405 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 19:09:17,406 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:09:17,406 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:09:17,407 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 19:09:17,407 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:09:17,407 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 19:09:17,408 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:09:17,408 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:09:17,408 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_b0057c81-e8d7-41d4-9539-cbeaea706ee3/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 -> 0ab550a6e9aa370752671d7ad69781384c889e75 [2018-12-09 19:09:17,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:09:17,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:09:17,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:09:17,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:09:17,439 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:09:17,439 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-12-09 19:09:17,476 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/data/31ea6fb2c/630796a3055b4ead8cd20928d45b0084/FLAGf16b9a9cc [2018-12-09 19:09:17,861 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:09:17,862 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-12-09 19:09:17,865 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/data/31ea6fb2c/630796a3055b4ead8cd20928d45b0084/FLAGf16b9a9cc [2018-12-09 19:09:17,877 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/data/31ea6fb2c/630796a3055b4ead8cd20928d45b0084 [2018-12-09 19:09:17,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:09:17,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:09:17,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:09:17,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:09:17,884 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:09:17,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:09:17" (1/1) ... [2018-12-09 19:09:17,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dec73bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:17, skipping insertion in model container [2018-12-09 19:09:17,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:09:17" (1/1) ... [2018-12-09 19:09:17,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:09:17,906 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:09:17,992 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:09:17,995 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:09:18,004 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:09:18,012 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:09:18,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18 WrapperNode [2018-12-09 19:09:18,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:09:18,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:09:18,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:09:18,013 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:09:18,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:09:18,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:09:18,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:09:18,033 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:09:18,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:09:18,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:09:18,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:09:18,044 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:09:18,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:09:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/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 [2018-12-09 19:09:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:09:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:09:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:09:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:09:18,204 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:09:18,204 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-09 19:09:18,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:09:18 BoogieIcfgContainer [2018-12-09 19:09:18,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:09:18,205 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 19:09:18,205 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 19:09:18,211 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 19:09:18,211 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:09:18" (1/1) ... [2018-12-09 19:09:18,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:09:18,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:09:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2018-12-09 19:09:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2018-12-09 19:09:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:09:18,242 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:09:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:09:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:09:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:09:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-12-09 19:09:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-12-09 19:09:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:09:18,333 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:09:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:09:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:09:18,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:09:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2018-12-09 19:09:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-12-09 19:09:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:09:18,522 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:09:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:09:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:09:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:09:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-12-09 19:09:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-12-09 19:09:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:09:18,841 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:09:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:09:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:09:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:09:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:09:18,884 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-12-09 19:09:18,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 07:09:18 ImpRootNode [2018-12-09 19:09:18,907 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 19:09:18,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:09:18,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:09:18,907 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:09:18,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:09:18" (3/4) ... [2018-12-09 19:09:18,910 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:09:18,952 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b0057c81-e8d7-41d4-9539-cbeaea706ee3/bin-2019/ukojak/witness.graphml [2018-12-09 19:09:18,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:09:18,953 INFO L168 Benchmark]: Toolchain (without parser) took 1073.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 956.0 MB in the beginning and 977.5 MB in the end (delta: -21.5 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:09:18,955 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:09:18,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.40 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:09:18,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:09:18,956 INFO L168 Benchmark]: Boogie Preprocessor took 11.62 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:09:18,957 INFO L168 Benchmark]: RCFGBuilder took 160.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:09:18,958 INFO L168 Benchmark]: CodeCheck took 702.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 132.8 MB). Peak memory consumption was 132.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:09:18,959 INFO L168 Benchmark]: Witness Printer took 45.47 ms. Allocated memory is still 1.2 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:09:18,962 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, 18 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 18 SDslu, 4 SDs, 0 SdLazy, 194 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1034 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i