./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.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_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/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 914e210bb2ee753bbbdbfa23a6e9397216225fad ....................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:02:10,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:02:10,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:02:10,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:02:10,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:02:10,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:02:10,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:02:10,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:02:10,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:02:10,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:02:10,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:02:10,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:02:10,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:02:10,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:02:10,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:02:10,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:02:10,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:02:10,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:02:10,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:02:10,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:02:10,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:02:10,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:02:10,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:02:10,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:02:10,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:02:10,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:02:10,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:02:10,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:02:10,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:02:10,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:02:10,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:02:10,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:02:10,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:02:10,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:02:10,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:02:10,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:02:10,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:02:10,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:02:10,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:02:10,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:02:10,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:02:10,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 11:02:10,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:02:10,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:02:10,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:02:10,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:02:10,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:02:10,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:02:10,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:02:10,265 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:02:10,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:02:10,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:02:10,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:02:10,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:02:10,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:02:10,267 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:02:10,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:02:10,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:02:10,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:02:10,268 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:02:10,268 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:02:10,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:02:10,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:02:10,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:02:10,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:02:10,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:02:10,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:02:10,270 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:02:10,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:02:10,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:02:10,271 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_75f89dfb-fa71-45be-96e8-3afb7e1e3664/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 914e210bb2ee753bbbdbfa23a6e9397216225fad [2020-12-03 11:02:10,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:02:10,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:02:10,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:02:10,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:02:10,577 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:02:10,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2020-12-03 11:02:10,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/data/f6c5a17ae/7b7fac868a8e46ca9e9d74de8421cd79/FLAG8b7804ae9 [2020-12-03 11:02:11,109 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:02:11,112 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2020-12-03 11:02:11,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/data/f6c5a17ae/7b7fac868a8e46ca9e9d74de8421cd79/FLAG8b7804ae9 [2020-12-03 11:02:11,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/data/f6c5a17ae/7b7fac868a8e46ca9e9d74de8421cd79 [2020-12-03 11:02:11,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:02:11,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:02:11,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:02:11,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:02:11,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:02:11,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f94392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11, skipping insertion in model container [2020-12-03 11:02:11,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:02:11,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:02:11,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:02:11,691 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:02:11,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:02:11,728 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:02:11,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11 WrapperNode [2020-12-03 11:02:11,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:02:11,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:02:11,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:02:11,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:02:11,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:02:11,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:02:11,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:02:11,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:02:11,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... [2020-12-03 11:02:11,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:02:11,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:02:11,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:02:11,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:02:11,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:02:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/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 [2020-12-03 11:02:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:02:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:02:12,101 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:02:12,101 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 11:02:12,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:12 BoogieIcfgContainer [2020-12-03 11:02:12,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:02:12,105 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:02:12,107 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:02:12,121 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:02:12,123 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:12" (1/1) ... [2020-12-03 11:02:12,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:02:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-03 11:02:12,191 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-03 11:02:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:02:12,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:12,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-03 11:02:12,419 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-03 11:02:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:02:12,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:12,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-12-03 11:02:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-12-03 11:02:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:02:12,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:02:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:02:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:02:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-12-03 11:02:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-12-03 11:02:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:02:12,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:02:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:02:12,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:02:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:02:12,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:02:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:02:12,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:02:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:02:12,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:02:12,767 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2020-12-03 11:02:12,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:02:12 ImpRootNode [2020-12-03 11:02:12,795 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:02:12,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:02:12,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:02:12,797 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:02:12,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:02:12" (3/4) ... [2020-12-03 11:02:12,800 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 11:02:12,854 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75f89dfb-fa71-45be-96e8-3afb7e1e3664/bin/ukojak/witness.graphml [2020-12-03 11:02:12,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:02:12,856 INFO L168 Benchmark]: Toolchain (without parser) took 1354.05 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 57.6 MB in the beginning and 42.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:12,857 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:12,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.08 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 57.3 MB in the beginning and 87.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:12,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.34 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:12,859 INFO L168 Benchmark]: Boogie Preprocessor took 19.93 ms. Allocated memory is still 109.1 MB. Free memory was 85.9 MB in the beginning and 85.1 MB in the end (delta: 847.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:02:12,860 INFO L168 Benchmark]: RCFGBuilder took 316.80 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 73.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:12,861 INFO L168 Benchmark]: CodeCheck took 690.66 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 44.0 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:12,861 INFO L168 Benchmark]: Witness Printer took 57.65 ms. Allocated memory is still 109.1 MB. Free memory was 44.0 MB in the beginning and 42.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:02:12,865 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, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 26 SDslu, 24 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L20] COND TRUE x > 0 && y > 0 && z > 0 [L21] COND TRUE y > x [L22] y = z [L23] x = __VERIFIER_nondet_int() [L24] x - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.08 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 57.3 MB in the beginning and 87.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.34 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.93 ms. Allocated memory is still 109.1 MB. Free memory was 85.9 MB in the beginning and 85.1 MB in the end (delta: 847.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 316.80 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 73.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 690.66 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 44.0 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 57.65 ms. Allocated memory is still 109.1 MB. Free memory was 44.0 MB in the beginning and 42.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...