./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/gcd1.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_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/gcd1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/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 bdfef58fa4fb3de1b318ab5efff1c275e7824970 .............................................................................................................................................................................................................. 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 16:13:55,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:13:55,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:13:55,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:13:55,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:13:55,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:13:55,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:13:55,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:13:55,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:13:55,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:13:55,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:13:55,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:13:55,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:13:55,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:13:55,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:13:55,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:13:55,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:13:55,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:13:55,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:13:55,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:13:55,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:13:55,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:13:55,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:13:55,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:13:55,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:13:55,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:13:55,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:13:55,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:13:55,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:13:55,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:13:55,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:13:55,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:13:55,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:13:55,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:13:55,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:13:55,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:13:55,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:13:55,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:13:55,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:13:55,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:13:55,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:13:55,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:13:55,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:13:55,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:13:55,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:13:55,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:13:55,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:13:55,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:13:55,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:13:55,869 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:13:55,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:13:55,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:13:55,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:13:55,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:13:55,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:13:55,871 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:13:55,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:13:55,872 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:13:55,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:13:55,872 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:13:55,873 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:13:55,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:13:55,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:13:55,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:13:55,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:13:55,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:13:55,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:13:55,874 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:13:55,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:13:55,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:13:55,875 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_6100f050-4418-40ac-a3ac-fd4f72ac3833/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdfef58fa4fb3de1b318ab5efff1c275e7824970 [2020-12-01 16:13:56,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:13:56,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:13:56,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:13:56,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:13:56,215 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:13:56,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/gcd1.c [2020-12-01 16:13:56,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/data/cd0fec56e/eac4e7d760654d67b5049c740ea1cd19/FLAGdf12f4dd3 [2020-12-01 16:13:56,781 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:13:56,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/sv-benchmarks/c/termination-crafted-lit/gcd1.c [2020-12-01 16:13:56,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/data/cd0fec56e/eac4e7d760654d67b5049c740ea1cd19/FLAGdf12f4dd3 [2020-12-01 16:13:57,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/data/cd0fec56e/eac4e7d760654d67b5049c740ea1cd19 [2020-12-01 16:13:57,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:13:57,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:13:57,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:13:57,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:13:57,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:13:57,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44aa5313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57, skipping insertion in model container [2020-12-01 16:13:57,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:13:57,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:13:57,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:13:57,399 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:13:57,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:13:57,461 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:13:57,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57 WrapperNode [2020-12-01 16:13:57,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:13:57,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:13:57,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:13:57,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:13:57,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:13:57,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:13:57,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:13:57,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:13:57,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:13:57,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:13:57,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:13:57,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:13:57,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/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 16:13:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:13:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:13:57,784 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:13:57,784 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:13:57,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:57 BoogieIcfgContainer [2020-12-01 16:13:57,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:13:57,788 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:13:57,788 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:13:57,799 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:13:57,799 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:57" (1/1) ... [2020-12-01 16:13:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:13:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-01 16:13:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-01 16:13:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:13:57,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:13:57,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:13:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:13:57,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:13:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:13:58,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:13:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:13:58,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:13:58,038 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 16:13:58,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:13:58 ImpRootNode [2020-12-01 16:13:58,066 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:13:58,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:13:58,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:13:58,075 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:13:58,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:57" (3/4) ... [2020-12-01 16:13:58,078 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:13:58,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6100f050-4418-40ac-a3ac-fd4f72ac3833/bin/ukojak/witness.graphml [2020-12-01 16:13:58,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:13:58,126 INFO L168 Benchmark]: Toolchain (without parser) took 948.43 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 39.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:13:58,127 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:13:58,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.92 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 63.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:13:58,133 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.00 ms. Allocated memory is still 83.9 MB. Free memory was 63.8 MB in the beginning and 62.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:13:58,134 INFO L168 Benchmark]: Boogie Preprocessor took 23.38 ms. Allocated memory is still 83.9 MB. Free memory was 62.5 MB in the beginning and 61.7 MB in the end (delta: 828.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:13:58,140 INFO L168 Benchmark]: RCFGBuilder took 268.52 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 49.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:13:58,142 INFO L168 Benchmark]: CodeCheck took 279.01 ms. Allocated memory is still 83.9 MB. Free memory was 49.5 MB in the beginning and 40.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:13:58,142 INFO L168 Benchmark]: Witness Printer took 50.74 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 39.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:13:58,154 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, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int r, x, y; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L20] COND TRUE x<0 [L20] -x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.92 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 63.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.00 ms. Allocated memory is still 83.9 MB. Free memory was 63.8 MB in the beginning and 62.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.38 ms. Allocated memory is still 83.9 MB. Free memory was 62.5 MB in the beginning and 61.7 MB in the end (delta: 828.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 268.52 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 49.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 279.01 ms. Allocated memory is still 83.9 MB. Free memory was 49.5 MB in the beginning and 40.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 50.74 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 39.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...