./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.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_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/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 f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ................................................................................................................................................................................................................................................................................ 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 10:16:21,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:21,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:21,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:21,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:21,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:21,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:21,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:21,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:21,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:21,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:21,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:21,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:21,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:21,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:21,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:21,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:21,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:21,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:21,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:21,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:21,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:21,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:21,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:21,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:21,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:21,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:21,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:21,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:21,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:21,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:21,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:21,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:21,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:21,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:21,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:21,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:21,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:21,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:21,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:21,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:21,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:16:21,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:21,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:21,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:16:21,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:16:21,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:21,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:21,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:21,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:21,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:21,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:21,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:16:21,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:21,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:16:21,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:16:21,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:16:21,746 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:21,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:16:21,746 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:21,746 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:21,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:21,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:21,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:21,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:21,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:21,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:16:21,747 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:21,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:21,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:16:21,748 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_21723b79-b6da-4c86-a670-112f32be0ec3/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 -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2019-10-22 10:16:21,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:21,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:21,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:21,790 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:21,790 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:21,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2019-10-22 10:16:21,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/data/304412272/27d556e57f84449490ae5d8fa29dd3a0/FLAGe3f764b38 [2019-10-22 10:16:22,215 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:22,215 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2019-10-22 10:16:22,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/data/304412272/27d556e57f84449490ae5d8fa29dd3a0/FLAGe3f764b38 [2019-10-22 10:16:22,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/data/304412272/27d556e57f84449490ae5d8fa29dd3a0 [2019-10-22 10:16:22,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:22,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:22,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:22,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:22,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:22,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ebe14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22, skipping insertion in model container [2019-10-22 10:16:22,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,637 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:22,648 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:22,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:22,772 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:22,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:22,851 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:22,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22 WrapperNode [2019-10-22 10:16:22,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:22,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:22,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:22,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:22,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:22,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:22,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:22,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:22,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... [2019-10-22 10:16:22,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:22,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:22,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:22,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:22,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/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 10:16:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:23,236 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:23,236 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 10:16:23,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:23 BoogieIcfgContainer [2019-10-22 10:16:23,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:23,238 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:23,238 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:23,249 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:23,249 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:23" (1/1) ... [2019-10-22 10:16:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-10-22 10:16:23,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-10-22 10:16:23,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:23,301 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:23,443 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 10:16:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-10-22 10:16:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-10-22 10:16:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:23,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:23,533 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 10:16:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2019-10-22 10:16:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2019-10-22 10:16:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:23,613 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:23,642 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 10:16:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-10-22 10:16:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-10-22 10:16:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:23,883 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:23,925 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 10:16:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2019-10-22 10:16:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-10-22 10:16:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:16:24,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2019-10-22 10:16:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-10-22 10:16:24,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:24,166 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:16:24,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:24,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-10-22 10:16:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-10-22 10:16:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:24,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 10:16:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2019-10-22 10:16:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2019-10-22 10:16:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:24,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:24,784 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 10:16:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2019-10-22 10:16:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2019-10-22 10:16:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:16:24,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-22 10:16:25,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:25,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2019-10-22 10:16:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-10-22 10:16:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:16:25,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-22 10:16:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2019-10-22 10:16:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-10-22 10:16:25,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:16:25,277 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2019-10-22 10:16:25,284 INFO L771 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-10-22 10:16:25,344 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:25,346 INFO L575 CodeCheckObserver]: Invariant with dag size 9 [2019-10-22 10:16:25,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:25 ImpRootNode [2019-10-22 10:16:25,351 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:25,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:25,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:25,352 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:25,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:23" (3/4) ... [2019-10-22 10:16:25,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:16:25,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 10:16:25,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:16:25,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:16:25,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_21723b79-b6da-4c86-a670-112f32be0ec3/bin/ukojak/witness.graphml [2019-10-22 10:16:25,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:25,403 INFO L168 Benchmark]: Toolchain (without parser) took 2779.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:25,403 INFO L168 Benchmark]: CDTParser took 0.18 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 10:16:25,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:25,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:25,404 INFO L168 Benchmark]: Boogie Preprocessor took 13.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:25,405 INFO L168 Benchmark]: RCFGBuilder took 333.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:25,405 INFO L168 Benchmark]: CodeCheck took 2113.76 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:25,406 INFO L168 Benchmark]: Witness Printer took 49.17 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:25,408 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: 2.0s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 4162 SDslu, 0 SDs, 0 SdLazy, 21786 SolverSat, 4952 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 593 SyntacticMatches, 34 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2032 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 35/42 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: 20]: 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 228.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -212.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 333.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 2113.76 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Witness Printer took 49.17 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...