./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.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_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/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 5155088d89d02424835a418b2f1dfc7cb44efefa .............................................................................................................................................................................................................................................. 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 [2020-12-01 17:47:29,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:47:29,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:47:29,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:47:29,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:47:29,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:47:29,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:47:29,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:47:29,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:47:29,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:47:29,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:47:29,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:47:29,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:47:29,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:47:29,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:47:29,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:47:29,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:47:29,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:47:29,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:47:29,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:47:29,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:47:29,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:47:29,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:47:29,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:47:29,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:47:29,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:47:29,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:47:29,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:47:29,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:47:29,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:47:29,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:47:29,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:47:29,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:47:29,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:47:29,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:47:29,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:47:29,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:47:29,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:47:29,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:47:29,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:47:29,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:47:29,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:47:29,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:47:29,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:47:29,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:47:29,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:47:29,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:47:29,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:47:29,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:47:29,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:47:29,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:47:29,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:47:29,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:47:29,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:47:29,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:47:29,253 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:47:29,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:47:29,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:47:29,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:47:29,254 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:47:29,254 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:47:29,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:47:29,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:47:29,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:47:29,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:47:29,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:47:29,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:47:29,256 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:47:29,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:47:29,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:47:29,257 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_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2020-12-01 17:47:29,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:47:29,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:47:29,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:47:29,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:47:29,639 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:47:29,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2020-12-01 17:47:29,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/data/cf8e52b41/22a482ca66f844e1ad29e4c305937216/FLAG67fa9a264 [2020-12-01 17:47:30,283 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:47:30,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2020-12-01 17:47:30,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/data/cf8e52b41/22a482ca66f844e1ad29e4c305937216/FLAG67fa9a264 [2020-12-01 17:47:30,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/data/cf8e52b41/22a482ca66f844e1ad29e4c305937216 [2020-12-01 17:47:30,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:47:30,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:47:30,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:47:30,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:47:30,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:47:30,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697147df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30, skipping insertion in model container [2020-12-01 17:47:30,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:47:30,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:47:30,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:47:30,891 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:47:30,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:47:30,924 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:47:30,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30 WrapperNode [2020-12-01 17:47:30,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:47:30,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:47:30,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:47:30,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:47:30,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:47:30,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:47:30,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:47:30,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:47:30,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:30,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... [2020-12-01 17:47:31,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:47:31,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:47:31,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:47:31,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:47:31,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/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 17:47:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:47:31,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:47:31,335 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:47:31,335 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:47:31,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:31 BoogieIcfgContainer [2020-12-01 17:47:31,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:47:31,339 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:47:31,339 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:47:31,351 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:47:31,351 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:31" (1/1) ... [2020-12-01 17:47:31,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:47:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-01 17:47:31,417 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 17:47:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:47:31,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:47:31,655 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 17:47:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 17:47:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 17:47:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:47:31,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:47:31,851 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 17:47:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 17:47:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 17:47:32,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:47:32,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:47:32,239 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 17:47:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-12-01 17:47:32,448 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-12-01 17:47:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:47:32,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:47:32,483 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 17:47:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-12-01 17:47:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-12-01 17:47:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:47:32,654 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:32,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:32,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:32,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:32,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:32,721 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-12-01 17:47:32,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:47:32 ImpRootNode [2020-12-01 17:47:32,748 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:47:32,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:47:32,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:47:32,749 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:47:32,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:31" (3/4) ... [2020-12-01 17:47:32,752 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:47:32,802 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a314b28-c84c-4d39-b443-d88fb1eeb7c2/bin/ukojak/witness.graphml [2020-12-01 17:47:32,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:47:32,805 INFO L168 Benchmark]: Toolchain (without parser) took 2148.77 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 95.4 MB in the beginning and 58.5 MB in the end (delta: 36.9 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:32,806 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:32,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.46 ms. Allocated memory is still 127.9 MB. Free memory was 95.4 MB in the beginning and 103.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:32,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.26 ms. Allocated memory is still 127.9 MB. Free memory was 103.5 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:32,809 INFO L168 Benchmark]: Boogie Preprocessor took 30.34 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 101.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:32,810 INFO L168 Benchmark]: RCFGBuilder took 336.09 ms. Allocated memory is still 127.9 MB. Free memory was 101.5 MB in the beginning and 90.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:32,811 INFO L168 Benchmark]: CodeCheck took 1408.61 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 90.4 MB in the beginning and 60.6 MB in the end (delta: 29.8 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:32,812 INFO L168 Benchmark]: Witness Printer took 54.01 ms. Allocated memory is still 155.2 MB. Free memory was 59.5 MB in the beginning and 58.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:32,817 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.46 ms. Allocated memory is still 127.9 MB. Free memory was 95.4 MB in the beginning and 103.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.26 ms. Allocated memory is still 127.9 MB. Free memory was 103.5 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.34 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 101.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 336.09 ms. Allocated memory is still 127.9 MB. Free memory was 101.5 MB in the beginning and 90.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1408.61 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 90.4 MB in the beginning and 60.6 MB in the end (delta: 29.8 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. * Witness Printer took 54.01 ms. Allocated memory is still 155.2 MB. Free memory was 59.5 MB in the beginning and 58.5 MB in the end (delta: 1.1 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...