./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/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 bc157475d6c321934f68f6b441d83c0582720461 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:34:21,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:34:21,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:34:21,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:34:21,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:34:21,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:34:21,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:34:21,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:34:21,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:34:21,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:34:21,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:34:21,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:34:21,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:34:21,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:34:21,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:34:21,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:34:21,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:34:21,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:34:21,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:34:21,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:34:21,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:34:21,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:34:21,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:34:21,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:34:21,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:34:21,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:34:21,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:34:21,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:34:21,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:34:21,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:34:21,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:34:21,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:34:21,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:34:21,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:34:21,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:34:21,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:34:21,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:34:21,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:34:21,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:34:21,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:34:21,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:34:21,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:34:21,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:34:21,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:34:21,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:34:21,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:34:21,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:34:21,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:34:21,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:34:21,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:34:21,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:34:21,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:34:21,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:34:21,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:34:21,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:34:21,224 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:34:21,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:34:21,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:34:21,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:34:21,225 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:34:21,225 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:34:21,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:34:21,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:34:21,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:34:21,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:34:21,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:34:21,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:34:21,227 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:34:21,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:34:21,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:34:21,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc157475d6c321934f68f6b441d83c0582720461 [2020-12-01 17:34:21,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:34:21,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:34:21,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:34:21,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:34:21,509 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:34:21,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-12-01 17:34:21,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/data/f6e3a0c0e/9c2e458b9b9c4813bce58dbba4963e7f/FLAGe931b76bb [2020-12-01 17:34:22,039 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:34:22,042 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-12-01 17:34:22,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/data/f6e3a0c0e/9c2e458b9b9c4813bce58dbba4963e7f/FLAGe931b76bb [2020-12-01 17:34:22,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/data/f6e3a0c0e/9c2e458b9b9c4813bce58dbba4963e7f [2020-12-01 17:34:22,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:34:22,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:34:22,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:34:22,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:34:22,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:34:22,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b0eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22, skipping insertion in model container [2020-12-01 17:34:22,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:34:22,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:34:22,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:34:22,644 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:34:22,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:34:22,697 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:34:22,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22 WrapperNode [2020-12-01 17:34:22,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:34:22,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:34:22,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:34:22,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:34:22,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:34:22,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:34:22,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:34:22,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:34:22,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... [2020-12-01 17:34:22,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:34:22,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:34:22,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:34:22,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:34:22,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/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 [2020-12-01 17:34:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:34:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:34:23,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:34:23,020 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:34:23,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:23 BoogieIcfgContainer [2020-12-01 17:34:23,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:34:23,024 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:34:23,024 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:34:23,037 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:34:23,037 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:23" (1/1) ... [2020-12-01 17:34:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:34:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-12-01 17:34:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-01 17:34:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:34:23,094 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 17:34:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 17:34:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:34:23,333 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-12-01 17:34:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-12-01 17:34:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:34:23,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-01 17:34:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-01 17:34:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:34:23,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:23,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-12-01 17:34:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 17:34:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:34:23,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2020-12-01 17:34:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-12-01 17:34:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:34:24,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:34:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:24,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-12-01 17:34:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-01 17:34:24,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:34:24,731 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-12-01 17:34:24,738 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 17:34:24,799 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 17:34:24,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:34:24 ImpRootNode [2020-12-01 17:34:24,809 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:34:24,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:34:24,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:34:24,810 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:34:24,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:23" (3/4) ... [2020-12-01 17:34:24,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:34:24,824 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:34:24,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:34:24,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:34:24,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_11b0c93e-764b-4b4b-a3f1-fbe5b3dd4de7/bin/ukojak/witness.graphml [2020-12-01 17:34:24,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:34:24,864 INFO L168 Benchmark]: Toolchain (without parser) took 2441.31 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.6 MB in the beginning and 67.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 813.7 kB. Max. memory is 16.1 GB. [2020-12-01 17:34:24,864 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:24,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.05 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 61.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:24,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.28 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:24,866 INFO L168 Benchmark]: Boogie Preprocessor took 19.82 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 59.2 MB in the end (delta: 970.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:24,866 INFO L168 Benchmark]: RCFGBuilder took 271.18 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 48.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:24,867 INFO L168 Benchmark]: CodeCheck took 1785.47 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 69.3 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:24,868 INFO L168 Benchmark]: Witness Printer took 52.05 ms. Allocated memory is still 98.6 MB. Free memory was 69.3 MB in the beginning and 67.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:24,871 INFO L339 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, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 232 SDslu, 0 SDs, 0 SdLazy, 1070 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 263 SyntacticMatches, 12 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 0 <= x + 2147483648 && debug == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.05 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 61.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.28 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.82 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 59.2 MB in the end (delta: 970.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 271.18 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 48.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1785.47 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.6 MB in the beginning and 69.3 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 52.05 ms. Allocated memory is still 98.6 MB. Free memory was 69.3 MB in the beginning and 67.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...