./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.22.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_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.22.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/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 8b6afe20c2dca459418f82abcc5ff6699539f1e9 ............................................................................................................................................................................................................... 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 16:54:16,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:54:16,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:54:16,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:54:16,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:54:16,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:54:16,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:54:16,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:54:16,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:54:16,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:54:16,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:54:16,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:54:16,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:54:16,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:54:16,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:54:16,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:54:16,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:54:16,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:54:16,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:54:16,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:54:16,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:54:16,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:54:16,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:54:16,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:54:16,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:54:16,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:54:16,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:54:16,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:54:16,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:54:16,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:54:16,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:54:16,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:54:16,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:54:16,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:54:16,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:54:16,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:54:16,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:54:16,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:54:16,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:54:16,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:54:16,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:54:16,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:54:16,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:54:16,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:54:16,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:54:16,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:54:16,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:54:16,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:54:16,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:54:16,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:54:16,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:54:16,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:54:16,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:54:16,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:54:16,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:54:16,849 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:54:16,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:54:16,849 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:54:16,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:54:16,850 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:54:16,850 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:54:16,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:54:16,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:54:16,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:54:16,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:54:16,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:54:16,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:54:16,852 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:54:16,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:54:16,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:54:16,852 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_42cdfd9d-add6-45a5-a1f0-23667edd8cab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b6afe20c2dca459418f82abcc5ff6699539f1e9 [2020-12-01 16:54:17,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:54:17,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:54:17,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:54:17,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:54:17,155 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:54:17,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.22.c [2020-12-01 16:54:17,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/data/3df649ebe/8811b2324d57416b99a07c636d62d64f/FLAGccd392605 [2020-12-01 16:54:17,776 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:54:17,777 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.22.c [2020-12-01 16:54:17,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/data/3df649ebe/8811b2324d57416b99a07c636d62d64f/FLAGccd392605 [2020-12-01 16:54:18,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/data/3df649ebe/8811b2324d57416b99a07c636d62d64f [2020-12-01 16:54:18,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:54:18,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:54:18,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:54:18,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:54:18,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:54:18,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b8cdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18, skipping insertion in model container [2020-12-01 16:54:18,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:54:18,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:54:18,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:54:18,371 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:54:18,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:54:18,405 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:54:18,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18 WrapperNode [2020-12-01 16:54:18,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:54:18,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:54:18,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:54:18,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:54:18,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:54:18,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:54:18,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:54:18,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:54:18,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:54:18,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:54:18,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:54:18,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:54:18,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/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 16:54:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:54:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:54:18,700 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:54:18,701 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:54:18,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:18 BoogieIcfgContainer [2020-12-01 16:54:18,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:54:18,704 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:54:18,704 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:54:18,715 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:54:18,715 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:18" (1/1) ... [2020-12-01 16:54:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:54:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-12-01 16:54:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-01 16:54:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:54:18,780 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:54:18,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:54:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:54:18,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:54:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:54:18,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:54:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:54:18,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:54:18,981 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 16:54:19,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:54:19 ImpRootNode [2020-12-01 16:54:19,014 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:54:19,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:54:19,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:54:19,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:54:19,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:18" (3/4) ... [2020-12-01 16:54:19,017 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:54:19,070 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42cdfd9d-add6-45a5-a1f0-23667edd8cab/bin/ukojak/witness.graphml [2020-12-01 16:54:19,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:54:19,073 INFO L168 Benchmark]: Toolchain (without parser) took 906.65 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 60.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:19,074 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 36.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:19,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.41 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 84.3 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:19,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 82.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:19,077 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 81.9 MB in the end (delta: 963.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:19,079 INFO L168 Benchmark]: RCFGBuilder took 243.34 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 71.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:19,080 INFO L168 Benchmark]: CodeCheck took 309.89 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 62.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:19,081 INFO L168 Benchmark]: Witness Printer took 56.56 ms. Allocated memory is still 104.9 MB. Free memory was 62.4 MB in the beginning and 60.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:19,087 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, 10 locations, 2 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, 4 NumberOfCodeBlocks, 4 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: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldy; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] oldy = __VERIFIER_nondet_int() [L27] x > 0 && y <= -oldy [L27] -oldy * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 36.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.41 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 84.3 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 82.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.45 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 81.9 MB in the end (delta: 963.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 243.34 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 71.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 309.89 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 62.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 56.56 ms. Allocated memory is still 104.9 MB. Free memory was 62.4 MB in the beginning and 60.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...