./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/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 31d0c4253184c01eb9f9573658b07bed7aa94585 .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:14:07,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:14:07,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:14:07,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:14:07,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:14:07,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:14:07,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:14:07,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:14:07,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:14:07,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:14:07,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:14:07,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:14:07,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:14:07,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:14:07,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:14:07,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:14:07,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:14:07,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:14:07,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:14:07,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:14:07,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:14:07,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:14:07,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:14:07,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:14:07,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:14:07,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:14:07,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:14:07,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:14:07,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:14:07,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:14:07,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:14:07,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:14:07,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:14:07,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:14:07,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:14:07,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:14:07,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:14:07,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:14:07,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:14:07,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:14:07,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:14:07,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:14:07,775 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:14:07,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:14:07,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:14:07,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:14:07,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:14:07,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:14:07,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:14:07,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:14:07,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:14:07,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:14:07,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:14:07,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:14:07,778 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:14:07,779 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:14:07,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:14:07,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:14:07,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:14:07,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:14:07,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:14:07,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:14:07,780 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:14:07,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:14:07,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:14:07,780 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/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/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 -> 31d0c4253184c01eb9f9573658b07bed7aa94585 [2019-10-22 10:14:07,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:14:07,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:14:07,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:14:07,831 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:14:07,831 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:14:07,832 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2019-10-22 10:14:07,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/data/05a1c887a/043653cdbaa9476f8cb203c4142ce23d/FLAG320311b09 [2019-10-22 10:14:08,284 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:14:08,285 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2019-10-22 10:14:08,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/data/05a1c887a/043653cdbaa9476f8cb203c4142ce23d/FLAG320311b09 [2019-10-22 10:14:08,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/data/05a1c887a/043653cdbaa9476f8cb203c4142ce23d [2019-10-22 10:14:08,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:14:08,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:14:08,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:08,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:14:08,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:14:08,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5408eeba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08, skipping insertion in model container [2019-10-22 10:14:08,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:14:08,719 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:14:08,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:08,842 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:14:08,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:08,928 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:14:08,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08 WrapperNode [2019-10-22 10:14:08,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:08,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:08,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:14:08,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:14:08,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:08,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:14:08,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:14:08,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:14:08,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... [2019-10-22 10:14:08,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:14:08,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:14:08,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:14:08,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:14:08,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/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 [2019-10-22 10:14:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:14:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:14:09,227 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:14:09,227 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 10:14:09,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:09 BoogieIcfgContainer [2019-10-22 10:14:09,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:14:09,229 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:14:09,229 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:14:09,239 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:14:09,240 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:09" (1/1) ... [2019-10-22 10:14:09,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:14:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-10-22 10:14:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-10-22 10:14:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:14:09,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-10-22 10:14:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 10:14:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:14:09,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2019-10-22 10:14:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-10-22 10:14:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:14:09,501 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:09,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2019-10-22 10:14:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-10-22 10:14:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:14:09,596 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2019-10-22 10:14:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-22 10:14:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:14:09,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2019-10-22 10:14:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-22 10:14:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:14:09,764 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:14:09,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2019-10-22 10:14:09,851 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-22 10:14:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:14:09,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 10:14:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2019-10-22 10:14:10,350 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-10-22 10:14:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:14:10,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 10:14:10,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-10-22 10:14:10,877 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-10-22 10:14:10,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:14:10,877 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2019-10-22 10:14:10,891 INFO L771 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-10-22 10:14:10,987 INFO L575 CodeCheckObserver]: Invariant with dag size 5 [2019-10-22 10:14:10,996 INFO L575 CodeCheckObserver]: Invariant with dag size 10 [2019-10-22 10:14:10,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:14:10 ImpRootNode [2019-10-22 10:14:10,997 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:14:10,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:14:10,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:14:10,998 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:14:10,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:09" (3/4) ... [2019-10-22 10:14:11,003 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:14:11,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 10:14:11,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:14:11,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:14:11,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f0350454-2a50-4fc1-8f19-fc196db257a0/bin/ukojak/witness.graphml [2019-10-22 10:14:11,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:14:11,051 INFO L168 Benchmark]: Toolchain (without parser) took 2359.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.9 MB in the beginning and 872.1 MB in the end (delta: 77.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:11,052 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:11,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:11,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:11,053 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:11,054 INFO L168 Benchmark]: RCFGBuilder took 241.59 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:11,054 INFO L168 Benchmark]: CodeCheck took 1769.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 879.1 MB in the end (delta: 185.5 MB). Peak memory consumption was 185.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:11,055 INFO L168 Benchmark]: Witness Printer took 51.61 ms. Allocated memory is still 1.1 GB. Free memory was 879.1 MB in the beginning and 872.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:11,057 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 1 procedures, 12 locations, 4 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 746 SDslu, 0 SDs, 0 SdLazy, 3518 SolverSat, 1032 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 385 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 15/16 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x1 <= 10 && 0 <= x1 + 2147483648) && x2 <= 10 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 241.59 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * CodeCheck took 1769.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 879.1 MB in the end (delta: 185.5 MB). Peak memory consumption was 185.5 MB. Max. memory is 11.5 GB. * Witness Printer took 51.61 ms. Allocated memory is still 1.1 GB. Free memory was 879.1 MB in the beginning and 872.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...