./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_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/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 [2020-11-30 03:46:30,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:46:30,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:46:30,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:46:30,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:46:30,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:46:30,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:46:30,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:46:30,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:46:30,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:46:30,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:46:30,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:46:30,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:46:30,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:46:30,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:46:30,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:46:30,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:46:30,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:46:30,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:46:30,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:46:30,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:46:30,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:46:30,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:46:30,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:46:30,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:46:30,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:46:30,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:46:30,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:46:30,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:46:30,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:46:30,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:46:30,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:46:30,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:46:30,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:46:30,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:46:30,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:46:30,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:46:30,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:46:30,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:46:30,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:46:30,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:46:30,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-30 03:46:30,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:46:30,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:46:30,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:46:30,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 03:46:30,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 03:46:30,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 03:46:30,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:46:30,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:46:30,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 03:46:30,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:46:30,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:46:30,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:46:30,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:46:30,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:46:30,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:46:30,863 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 03:46:30,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:46:30,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:46:30,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:46:30,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:46:30,865 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 03:46:30,867 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 03:46:30,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:46:30,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:46:30,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 03:46:30,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:46:30,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:46:30,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:46:30,869 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 03:46:30,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:46:30,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:46:30,873 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_a661d009-81fb-4b95-8908-d2ae39e92097/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80b527022d9b36e61193ad6d068e68d29260bb67 [2020-11-30 03:46:31,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:46:31,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:46:31,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:46:31,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:46:31,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:46:31,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2020-11-30 03:46:31,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/data/71f1104a3/bfd310c5a9104928aa764328edb6e8a2/FLAGb6e144013 [2020-11-30 03:46:31,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:46:31,894 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2020-11-30 03:46:31,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/data/71f1104a3/bfd310c5a9104928aa764328edb6e8a2/FLAGb6e144013 [2020-11-30 03:46:32,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/data/71f1104a3/bfd310c5a9104928aa764328edb6e8a2 [2020-11-30 03:46:32,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:46:32,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:46:32,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:46:32,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:46:32,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:46:32,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6753585f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32, skipping insertion in model container [2020-11-30 03:46:32,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:46:32,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:46:32,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:46:32,500 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:46:32,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:46:32,547 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:46:32,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32 WrapperNode [2020-11-30 03:46:32,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:46:32,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:46:32,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:46:32,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:46:32,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:46:32,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:46:32,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:46:32,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:46:32,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... [2020-11-30 03:46:32,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:46:32,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:46:32,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:46:32,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:46:32,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:46:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/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 [2020-11-30 03:46:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:46:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:46:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:46:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:46:33,300 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:46:33,301 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:46:33,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:46:33 BoogieIcfgContainer [2020-11-30 03:46:33,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:46:33,304 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 03:46:33,305 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 03:46:33,317 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 03:46:33,318 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:46:33" (1/1) ... [2020-11-30 03:46:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:46:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:46:33,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-11-30 03:46:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-11-30 03:46:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:46:33,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:46:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:46:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:46:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:46:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-30 03:46:33,687 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-30 03:46:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 03:46:33,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:46:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:46:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:46:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:46:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-11-30 03:46:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-11-30 03:46:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 03:46:33,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:46:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:46:33,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:46:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:46:33,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:46:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:46:33,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:46:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:46:33,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:46:33,903 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-30 03:46:33,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 03:46:33 ImpRootNode [2020-11-30 03:46:33,929 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 03:46:33,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:46:33,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:46:33,930 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:46:33,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:46:33" (3/4) ... [2020-11-30 03:46:33,934 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 03:46:33,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a661d009-81fb-4b95-8908-d2ae39e92097/bin/ukojak/witness.graphml [2020-11-30 03:46:33,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:46:33,987 INFO L168 Benchmark]: Toolchain (without parser) took 1765.73 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 79.4 MB in the beginning and 94.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:46:33,988 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:46:33,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.32 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 82.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:46:33,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:46:33,991 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 80.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:46:33,993 INFO L168 Benchmark]: RCFGBuilder took 682.34 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 62.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 03:46:33,994 INFO L168 Benchmark]: CodeCheck took 624.43 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 62.4 MB in the beginning and 96.8 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:46:33,995 INFO L168 Benchmark]: Witness Printer took 54.19 ms. Allocated memory is still 132.1 MB. Free memory was 96.8 MB in the beginning and 94.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:46:34,001 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, 0.1s 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