./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/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 32bit --witnessprinter.graph.data.programhash 80b527022d9b36e61193ad6d068e68d29260bb67 ...................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 04:42:24,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:24,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:24,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:24,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:24,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:24,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:24,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:24,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:24,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:24,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:24,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:24,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:24,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:24,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:24,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:24,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:24,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:24,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:24,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:24,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:24,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:24,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:24,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:24,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:24,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:24,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:24,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:24,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:24,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:24,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:24,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:24,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:24,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:24,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:24,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:24,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:24,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:24,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:24,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:24,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:24,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-28 04:42:24,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:24,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:24,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:24,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:24,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:24,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:24,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:24,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:24,950 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:42:24,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:24,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:24,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:24,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:24,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:24,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:24,953 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:42:24,953 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:24,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:24,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:24,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:24,954 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:24,954 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:24,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:24,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:24,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:24,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:24,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:24,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:24,956 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:24,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:24,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:24,957 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_858d6e32-addf-4d75-8e32-df03dd835d1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80b527022d9b36e61193ad6d068e68d29260bb67 [2020-11-28 04:42:25,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:25,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:25,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:25,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:25,343 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:25,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2020-11-28 04:42:25,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/data/730ba21f9/4a084783bf9e438b9a80046cec111355/FLAGe2f224004 [2020-11-28 04:42:26,129 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:26,130 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2020-11-28 04:42:26,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/data/730ba21f9/4a084783bf9e438b9a80046cec111355/FLAGe2f224004 [2020-11-28 04:42:26,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/data/730ba21f9/4a084783bf9e438b9a80046cec111355 [2020-11-28 04:42:26,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:26,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:26,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:26,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:26,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:26,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16efd6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26, skipping insertion in model container [2020-11-28 04:42:26,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:26,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:26,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:26,770 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:26,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:26,803 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:26,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26 WrapperNode [2020-11-28 04:42:26,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:26,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:26,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:26,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:26,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:26,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:26,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:26,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:26,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... [2020-11-28 04:42:26,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:26,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:26,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:26,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:26,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/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 [2020-11-28 04:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:27,375 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:27,375 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:42:27,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:27 BoogieIcfgContainer [2020-11-28 04:42:27,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:27,378 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:27,378 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:27,390 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:27,390 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:27" (1/1) ... [2020-11-28 04:42:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-11-28 04:42:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-11-28 04:42:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:42:27,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:27,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-28 04:42:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-28 04:42:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:27,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-11-28 04:42:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-11-28 04:42:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:27,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:27,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:27,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:27,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:27,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:27,967 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-28 04:42:27,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:27 ImpRootNode [2020-11-28 04:42:27,997 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:28,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:28,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:28,001 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:28,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:27" (3/4) ... [2020-11-28 04:42:28,005 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:42:28,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_858d6e32-addf-4d75-8e32-df03dd835d1b/bin/ukojak/witness.graphml [2020-11-28 04:42:28,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:28,096 INFO L168 Benchmark]: Toolchain (without parser) took 1591.01 ms. Allocated memory is still 134.2 MB. Free memory was 102.4 MB in the beginning and 110.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,097 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 79.7 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:28,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.21 ms. Allocated memory is still 134.2 MB. Free memory was 102.4 MB in the beginning and 109.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.40 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,099 INFO L168 Benchmark]: Boogie Preprocessor took 35.86 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:28,100 INFO L168 Benchmark]: RCFGBuilder took 485.74 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 90.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,101 INFO L168 Benchmark]: CodeCheck took 619.30 ms. Allocated memory is still 134.2 MB. Free memory was 90.0 MB in the beginning and 66.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,106 INFO L168 Benchmark]: Witness Printer took 93.72 ms. Allocated memory is still 134.2 MB. Free memory was 66.2 MB in the beginning and 110.6 MB in the end (delta: -44.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:28,151 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: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 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, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int n = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] _Bool flag = __VERIFIER_nondet_bool(); [L24] i=0 [L25] COND FALSE !(!(n>0 && n<10)) [L26] COND TRUE i