./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87d0ba70ff123101875b88252c232be93381362a ................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:02:06,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:02:06,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:02:06,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:02:06,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:02:06,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:02:06,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:02:06,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:02:06,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:02:06,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:02:06,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:02:06,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:02:06,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:02:06,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:02:06,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:02:06,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:02:06,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:02:06,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:02:06,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:02:06,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:02:06,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:02:06,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:02:06,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:02:06,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:02:06,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:02:06,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:02:06,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:02:06,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:02:06,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:02:06,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:02:06,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:02:06,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:02:06,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:02:06,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:02:06,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:02:06,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:02:06,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:02:06,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:02:06,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:02:06,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:02:06,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:02:06,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 05:02:06,293 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:02:06,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:02:06,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 05:02:06,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 05:02:06,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:02:06,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:02:06,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:02:06,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:02:06,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:02:06,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:02:06,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:02:06,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:02:06,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:02:06,297 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 05:02:06,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:02:06,298 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:02:06,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:02:06,298 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 05:02:06,299 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 05:02:06,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:02:06,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:02:06,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:02:06,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:02:06,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:02:06,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:02:06,301 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 05:02:06,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:02:06,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:02:06,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2019-11-20 05:02:06,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:02:06,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:02:06,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:02:06,484 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:02:06,484 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:02:06,485 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2019-11-20 05:02:06,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/data/ca802ff67/ace4c3f3aa144974a7dd8fc2f977ebda/FLAG966ea6bd6 [2019-11-20 05:02:06,971 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:02:06,971 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2019-11-20 05:02:06,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/data/ca802ff67/ace4c3f3aa144974a7dd8fc2f977ebda/FLAG966ea6bd6 [2019-11-20 05:02:07,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/data/ca802ff67/ace4c3f3aa144974a7dd8fc2f977ebda [2019-11-20 05:02:07,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:02:07,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:02:07,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:02:07,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:02:07,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:02:07,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6709ef4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07, skipping insertion in model container [2019-11-20 05:02:07,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,397 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:02:07,415 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:02:07,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:02:07,653 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:02:07,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:02:07,814 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:02:07,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07 WrapperNode [2019-11-20 05:02:07,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:02:07,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:02:07,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:02:07,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:02:07,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:02:07,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:02:07,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:02:07,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:02:07,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... [2019-11-20 05:02:07,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:02:07,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:02:07,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:02:07,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:02:07,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:02:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/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 [2019-11-20 05:02:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure le [2019-11-20 05:02:07,951 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2019-11-20 05:02:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:02:07,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:02:08,152 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:02:08,152 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 05:02:08,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:02:08 BoogieIcfgContainer [2019-11-20 05:02:08,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:02:08,154 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 05:02:08,154 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 05:02:08,166 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 05:02:08,166 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:02:08" (1/1) ... [2019-11-20 05:02:08,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:02:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2019-11-20 05:02:08,249 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-20 05:02:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 05:02:08,252 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 29 transitions. [2019-11-20 05:02:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-20 05:02:08,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 05:02:08,619 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 28 transitions. [2019-11-20 05:02:08,759 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-11-20 05:02:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 05:02:08,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 36 transitions. [2019-11-20 05:02:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2019-11-20 05:02:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 05:02:09,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 40 transitions. [2019-11-20 05:02:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2019-11-20 05:02:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 05:02:10,247 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 44 transitions. [2019-11-20 05:02:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-20 05:02:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 05:02:10,819 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:02:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:02:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:02:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:02:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 20 transitions. [2019-11-20 05:02:11,159 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 05:02:11,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:02:11,160 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2019-11-20 05:02:11,168 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-11-20 05:02:11,219 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 05:02:11,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:02:11 ImpRootNode [2019-11-20 05:02:11,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 05:02:11,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:02:11,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:02:11,225 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:02:11,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:02:08" (3/4) ... [2019-11-20 05:02:11,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:02:11,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure le [2019-11-20 05:02:11,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 05:02:11,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:02:11,291 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ee81bb0-a3ff-4685-bf74-a17e65eb8e50/bin/ukojak/witness.graphml [2019-11-20 05:02:11,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:02:11,293 INFO L168 Benchmark]: Toolchain (without parser) took 3914.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,294 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:02:11,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:02:11,296 INFO L168 Benchmark]: Boogie Preprocessor took 28.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,297 INFO L168 Benchmark]: RCFGBuilder took 266.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,297 INFO L168 Benchmark]: CodeCheck took 3069.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,298 INFO L168 Benchmark]: Witness Printer took 66.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:02:11,301 INFO L335 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, 21 locations, 4 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 514 SDslu, 64 SDs, 0 SdLazy, 1892 SolverSat, 434 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 520 GetRequests, 437 SyntacticMatches, 15 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1582 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 436.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 266.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * CodeCheck took 3069.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 66.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...