./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.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_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/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 243aabcd2dba446bff3e5c5a4012e6e80ddc3b51 ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:12:55,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:12:55,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:12:55,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:12:55,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:12:55,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:12:55,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:12:55,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:12:55,175 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:12:55,176 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:12:55,176 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:12:55,177 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:12:55,177 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:12:55,178 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:12:55,178 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:12:55,179 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:12:55,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:12:55,180 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:12:55,181 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:12:55,182 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:12:55,182 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:12:55,183 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:12:55,184 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:12:55,184 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:12:55,184 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:12:55,185 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:12:55,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:12:55,186 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:12:55,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:12:55,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:12:55,187 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:12:55,187 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:12:55,188 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:12:55,188 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:12:55,188 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:12:55,189 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:12:55,189 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-08 22:12:55,196 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:12:55,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:12:55,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 22:12:55,197 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 22:12:55,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:12:55,197 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:12:55,198 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 22:12:55,198 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:12:55,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 22:12:55,199 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:12:55,199 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:12:55,199 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:12:55,199 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 22:12:55,199 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:12:55,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:12:55,199 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_83871b85-9e4b-4153-8333-aa73a0bfdbe0/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 -> 243aabcd2dba446bff3e5c5a4012e6e80ddc3b51 [2018-12-08 22:12:55,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:12:55,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:12:55,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:12:55,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:12:55,230 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:12:55,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/../../sv-benchmarks/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-12-08 22:12:55,267 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/data/62d640169/9c7f87083ff744a2b869d5c2d0ac0066/FLAGb9109d6cd [2018-12-08 22:12:55,671 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:12:55,672 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/sv-benchmarks/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-12-08 22:12:55,675 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/data/62d640169/9c7f87083ff744a2b869d5c2d0ac0066/FLAGb9109d6cd [2018-12-08 22:12:55,683 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/data/62d640169/9c7f87083ff744a2b869d5c2d0ac0066 [2018-12-08 22:12:55,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:12:55,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:12:55,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:55,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:12:55,688 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:12:55,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5cabf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55, skipping insertion in model container [2018-12-08 22:12:55,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:12:55,702 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:12:55,783 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:55,786 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:12:55,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:55,801 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:12:55,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55 WrapperNode [2018-12-08 22:12:55,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:55,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:55,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:12:55,802 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:12:55,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:55,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:12:55,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:12:55,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:12:55,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... [2018-12-08 22:12:55,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:12:55,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:12:55,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:12:55,859 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:12:55,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/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 [2018-12-08 22:12:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:12:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:12:56,009 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:12:56,010 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-08 22:12:56,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:56 BoogieIcfgContainer [2018-12-08 22:12:56,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:12:56,011 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 22:12:56,011 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 22:12:56,018 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 22:12:56,019 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:56" (1/1) ... [2018-12-08 22:12:56,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 22:12:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-12-08 22:12:56,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-12-08 22:12:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 22:12:56,053 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 22:12:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 22:12:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 10 states and 18 transitions. [2018-12-08 22:12:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 18 transitions. [2018-12-08 22:12:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 22:12:56,238 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 22:12:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 22:12:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 22:12:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 11 states and 20 transitions. [2018-12-08 22:12:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 20 transitions. [2018-12-08 22:12:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 22:12:56,313 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 22:12:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 22:12:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 22:12:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 6 transitions. [2018-12-08 22:12:56,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 6 transitions. [2018-12-08 22:12:56,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 22:12:56,490 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-12-08 22:12:56,497 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-08 22:12:56,508 INFO L583 CodeCheckObserver]: Invariant with dag size 5 [2018-12-08 22:12:56,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 10:12:56 ImpRootNode [2018-12-08 22:12:56,514 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 22:12:56,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 22:12:56,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 22:12:56,514 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 22:12:56,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:56" (3/4) ... [2018-12-08 22:12:56,517 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 22:12:56,523 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-08 22:12:56,523 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 22:12:56,523 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 22:12:56,551 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_83871b85-9e4b-4153-8333-aa73a0bfdbe0/bin-2019/ukojak/witness.graphml [2018-12-08 22:12:56,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 22:12:56,551 INFO L168 Benchmark]: Toolchain (without parser) took 866.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -53.5 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:56,552 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-08 22:12:56,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:56,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.18 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:12:56,553 INFO L168 Benchmark]: Boogie Preprocessor took 38.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:56,554 INFO L168 Benchmark]: RCFGBuilder took 150.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:56,554 INFO L168 Benchmark]: CodeCheck took 503.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:56,555 INFO L168 Benchmark]: Witness Printer took 36.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:12:56,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 22 SDslu, 36 SDs, 0 SdLazy, 102 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 177 SyntacticMatches, 10 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: s <= 0 && 0 <= s * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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. * CACSL2BoogieTranslator took 115.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 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 18.18 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 150.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * CodeCheck took 503.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...