./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et4_true.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_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et4_true.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/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 53536d1fdd6afdf5702d18ef21a8c05f68768569 ...................................................................................................................................................................................................................... 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 16:50:14,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:50:14,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:50:14,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:50:14,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:50:14,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:50:14,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:50:14,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:50:14,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:50:14,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:50:14,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:50:14,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:50:14,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:50:14,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:50:14,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:50:14,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:50:14,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:50:14,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:50:14,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:50:14,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:50:14,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:50:14,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:50:14,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:50:14,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:50:14,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:50:14,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:50:14,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:50:14,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:50:14,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:50:14,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:50:14,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:50:14,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:50:14,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:50:14,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:50:14,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:50:14,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:50:14,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:50:14,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:50:14,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:50:14,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:50:14,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:50:14,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:50:14,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:50:14,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:50:14,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:50:14,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:50:14,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:50:14,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:50:14,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:50:14,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:50:14,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:50:14,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:50:14,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:50:14,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:50:14,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:50:14,733 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:50:14,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:50:14,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:50:14,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:50:14,734 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:50:14,734 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:50:14,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:50:14,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:50:14,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:50:14,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:50:14,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:50:14,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:50:14,736 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:50:14,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:50:14,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:50:14,737 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_6e9554b7-e9ed-4f45-8b73-60aed175035e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53536d1fdd6afdf5702d18ef21a8c05f68768569 [2020-12-01 16:50:15,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:50:15,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:50:15,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:50:15,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:50:15,080 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:50:15,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/../../sv-benchmarks/c/termination-numeric/Et4_true.c [2020-12-01 16:50:15,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/data/be3d7a133/c14884f542754134bdea19d34fa7ba0d/FLAG0fe98a312 [2020-12-01 16:50:15,638 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:50:15,639 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/sv-benchmarks/c/termination-numeric/Et4_true.c [2020-12-01 16:50:15,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/data/be3d7a133/c14884f542754134bdea19d34fa7ba0d/FLAG0fe98a312 [2020-12-01 16:50:16,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/data/be3d7a133/c14884f542754134bdea19d34fa7ba0d [2020-12-01 16:50:16,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:50:16,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:50:16,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:50:16,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:50:16,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:50:16,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7543eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16, skipping insertion in model container [2020-12-01 16:50:16,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:50:16,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:50:16,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:50:16,288 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:50:16,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:50:16,339 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:50:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16 WrapperNode [2020-12-01 16:50:16,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:50:16,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:50:16,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:50:16,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:50:16,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:50:16,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:50:16,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:50:16,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:50:16,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:50:16,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:50:16,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:50:16,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:50:16,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:50:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/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 16:50:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-12-01 16:50:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2020-12-01 16:50:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-12-01 16:50:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-12-01 16:50:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:50:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:50:16,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:50:16,734 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 16:50:16,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:50:16 BoogieIcfgContainer [2020-12-01 16:50:16,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:50:16,738 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:50:16,738 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:50:16,748 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:50:16,749 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:50:16" (1/1) ... [2020-12-01 16:50:16,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:50:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:50:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2020-12-01 16:50:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2020-12-01 16:50:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:50:16,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:50:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:50:16,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:50:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:50:16,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:50:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:50:16,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:50:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:50:16,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:50:16,932 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 16:50:16,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:50:16 ImpRootNode [2020-12-01 16:50:16,953 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:50:16,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:50:16,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:50:16,968 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:50:16,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:50:16" (3/4) ... [2020-12-01 16:50:16,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:50:17,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6e9554b7-e9ed-4f45-8b73-60aed175035e/bin/ukojak/witness.graphml [2020-12-01 16:50:17,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:50:17,015 INFO L168 Benchmark]: Toolchain (without parser) took 980.22 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 66.5 MB in the beginning and 105.4 MB in the end (delta: -38.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:50:17,016 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:50:17,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.65 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 73.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:50:17,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.95 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:50:17,019 INFO L168 Benchmark]: Boogie Preprocessor took 17.34 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.8 MB in the end (delta: 876.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:50:17,021 INFO L168 Benchmark]: RCFGBuilder took 340.71 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 57.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:50:17,022 INFO L168 Benchmark]: CodeCheck took 215.69 ms. Allocated memory is still 94.4 MB. Free memory was 57.9 MB in the beginning and 47.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:50:17,024 INFO L168 Benchmark]: Witness Printer took 57.73 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 47.7 MB in the beginning and 105.4 MB in the end (delta: -57.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:50:17,032 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 3 procedures, 37 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, 5 NumberOfCodeBlocks, 5 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: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L28] CALL random() [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 VAL [x=-2147483648] [L35] -x VAL [x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.65 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 73.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.95 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.34 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.8 MB in the end (delta: 876.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 340.71 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 57.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 215.69 ms. Allocated memory is still 94.4 MB. Free memory was 57.9 MB in the beginning and 47.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 57.73 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 47.7 MB in the beginning and 105.4 MB in the end (delta: -57.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...