./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore_v1.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_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore_v1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/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 6bcad26031a7ce5db51e61de49e1e285209e4512 .............................................................................................................................................................................................................. 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 10:59:58,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 10:59:58,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 10:59:58,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 10:59:58,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 10:59:58,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 10:59:58,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 10:59:58,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 10:59:58,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 10:59:58,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 10:59:58,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 10:59:58,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 10:59:58,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 10:59:58,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 10:59:58,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 10:59:58,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 10:59:58,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 10:59:58,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 10:59:58,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 10:59:58,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 10:59:58,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 10:59:58,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 10:59:58,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 10:59:58,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 10:59:58,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 10:59:58,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 10:59:58,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 10:59:58,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 10:59:58,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 10:59:58,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 10:59:58,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 10:59:58,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 10:59:58,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 10:59:58,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 10:59:58,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 10:59:58,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 10:59:58,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 10:59:58,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 10:59:58,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 10:59:58,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 10:59:58,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 10:59:58,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 10:59:58,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 10:59:58,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 10:59:58,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 10:59:58,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 10:59:58,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 10:59:58,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 10:59:58,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 10:59:58,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 10:59:58,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 10:59:58,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 10:59:58,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 10:59:58,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 10:59:58,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 10:59:58,967 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 10:59:58,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 10:59:58,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 10:59:58,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 10:59:58,967 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 10:59:58,968 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 10:59:58,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 10:59:58,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 10:59:58,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 10:59:58,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 10:59:58,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 10:59:58,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 10:59:58,969 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 10:59:58,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 10:59:58,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 10:59:58,970 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_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bcad26031a7ce5db51e61de49e1e285209e4512 [2020-12-03 10:59:59,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 10:59:59,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 10:59:59,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 10:59:59,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 10:59:59,248 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 10:59:59,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Singapore_v1.c [2020-12-03 10:59:59,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/data/8a8277cab/94a4d9896c82463393ac8cc90d19fde1/FLAGc825d8e87 [2020-12-03 10:59:59,802 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 10:59:59,804 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/sv-benchmarks/c/termination-crafted/Singapore_v1.c [2020-12-03 10:59:59,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/data/8a8277cab/94a4d9896c82463393ac8cc90d19fde1/FLAGc825d8e87 [2020-12-03 11:00:00,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/data/8a8277cab/94a4d9896c82463393ac8cc90d19fde1 [2020-12-03 11:00:00,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:00:00,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:00:00,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:00:00,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:00:00,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:00:00,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466f5009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00, skipping insertion in model container [2020-12-03 11:00:00,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:00:00,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:00:00,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:00:00,370 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:00:00,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:00:00,424 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:00:00,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00 WrapperNode [2020-12-03 11:00:00,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:00:00,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:00:00,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:00:00,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:00:00,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:00:00,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:00:00,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:00:00,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:00:00,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:00:00,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:00:00,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:00:00,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:00:00,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:00:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/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 11:00:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:00:00,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:00:00,883 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:00:00,883 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 11:00:00,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:00 BoogieIcfgContainer [2020-12-03 11:00:00,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:00:00,887 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:00:00,887 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:00:00,898 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:00:00,899 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:00" (1/1) ... [2020-12-03 11:00:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:00:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:00:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2020-12-03 11:00:00,945 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-12-03 11:00:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-03 11:00:00,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:00:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:00:01,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:00:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:00:01,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:00:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:00:01,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:00:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:00:01,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:00:01,104 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-03 11:00:01,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:00:01 ImpRootNode [2020-12-03 11:00:01,125 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:00:01,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:00:01,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:00:01,127 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:00:01,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:00:00" (3/4) ... [2020-12-03 11:00:01,130 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 11:00:01,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fcef9bfc-8adb-4ffc-bd50-8180f31dfe3a/bin/ukojak/witness.graphml [2020-12-03 11:00:01,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:00:01,165 INFO L168 Benchmark]: Toolchain (without parser) took 975.47 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 66.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:01,166 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:01,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 111.1 MB. Free memory was 80.6 MB in the beginning and 89.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:01,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 111.1 MB. Free memory was 89.7 MB in the beginning and 88.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:01,169 INFO L168 Benchmark]: Boogie Preprocessor took 33.41 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:01,169 INFO L168 Benchmark]: RCFGBuilder took 379.66 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 76.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:01,170 INFO L168 Benchmark]: CodeCheck took 238.71 ms. Allocated memory is still 111.1 MB. Free memory was 76.4 MB in the beginning and 67.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:00:01,171 INFO L168 Benchmark]: Witness Printer took 36.77 ms. Allocated memory is still 111.1 MB. Free memory was 67.6 MB in the beginning and 66.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:00:01,175 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, 21 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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, 2 NumberOfCodeBlocks, 2 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] x + y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.84 ms. Allocated memory is still 111.1 MB. Free memory was 80.6 MB in the beginning and 89.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 111.1 MB. Free memory was 89.7 MB in the beginning and 88.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.41 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 379.66 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 76.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 238.71 ms. Allocated memory is still 111.1 MB. Free memory was 76.4 MB in the beginning and 67.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 36.77 ms. Allocated memory is still 111.1 MB. Free memory was 67.6 MB in the beginning and 66.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...