./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/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 00d107e65807c328c5ca82cfbd5c365270dccab4 ........................................................................................................................................................................................................................................... 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 [2020-11-29 21:14:36,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:14:36,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:14:36,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:14:36,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:14:36,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:14:36,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:14:36,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:14:36,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:14:36,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:14:36,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:14:36,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:14:36,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:14:36,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:14:36,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:14:36,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:14:36,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:14:36,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:14:36,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:14:36,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:14:36,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:14:36,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:14:36,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:14:36,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:14:36,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:14:36,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:14:36,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:14:36,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:14:36,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:14:36,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:14:36,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:14:36,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:14:36,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:14:36,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:14:36,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:14:36,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:14:36,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:14:36,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:14:36,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:14:36,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:14:36,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:14:36,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 21:14:36,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:14:36,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:14:36,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 21:14:36,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 21:14:36,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:14:36,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:14:36,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:14:36,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:14:36,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:14:36,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:14:36,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:14:36,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:14:36,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:14:36,824 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 21:14:36,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:14:36,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:14:36,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:14:36,825 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 21:14:36,825 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 21:14:36,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:14:36,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:14:36,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 21:14:36,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:14:36,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:14:36,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:14:36,827 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 21:14:36,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:14:36,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:14:36,827 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_7449a0bc-d2aa-4637-a8c8-cb38351ca705/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2020-11-29 21:14:37,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:14:37,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:14:37,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:14:37,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:14:37,158 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:14:37,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-29 21:14:37,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/data/a0825f280/ab055e3b28e743c6ac6f56e5c44d2d1f/FLAGdc08584fe [2020-11-29 21:14:37,765 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:14:37,766 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2020-11-29 21:14:37,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/data/a0825f280/ab055e3b28e743c6ac6f56e5c44d2d1f/FLAGdc08584fe [2020-11-29 21:14:38,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/data/a0825f280/ab055e3b28e743c6ac6f56e5c44d2d1f [2020-11-29 21:14:38,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:14:38,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:14:38,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:14:38,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:14:38,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:14:38,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610fe1aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38, skipping insertion in model container [2020-11-29 21:14:38,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:14:38,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:14:38,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:14:38,367 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:14:38,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:14:38,405 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:14:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38 WrapperNode [2020-11-29 21:14:38,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:14:38,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:14:38,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:14:38,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:14:38,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:14:38,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:14:38,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:14:38,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:14:38,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:14:38,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:14:38,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:14:38,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:14:38,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/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 [2020-11-29 21:14:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:14:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:14:38,964 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:14:38,964 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 21:14:38,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:38 BoogieIcfgContainer [2020-11-29 21:14:38,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:14:38,967 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 21:14:38,967 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 21:14:38,979 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 21:14:38,979 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:38" (1/1) ... [2020-11-29 21:14:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:14:39,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-11-29 21:14:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-29 21:14:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 21:14:39,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:14:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:14:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2020-11-29 21:14:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-11-29 21:14:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:14:39,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:14:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:39,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:14:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2020-11-29 21:14:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-11-29 21:14:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 21:14:39,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:14:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:14:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2020-11-29 21:14:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2020-11-29 21:14:39,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 21:14:39,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:14:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:14:39,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:14:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:14:39,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:14:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:14:39,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:14:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:14:39,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:14:39,735 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2020-11-29 21:14:39,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 09:14:39 ImpRootNode [2020-11-29 21:14:39,758 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 21:14:39,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:14:39,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:14:39,760 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:14:39,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:38" (3/4) ... [2020-11-29 21:14:39,765 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:14:39,820 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7449a0bc-d2aa-4637-a8c8-cb38351ca705/bin/ukojak/witness.graphml [2020-11-29 21:14:39,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:14:39,827 INFO L168 Benchmark]: Toolchain (without parser) took 1669.46 ms. Allocated memory is still 102.8 MB. Free memory was 74.3 MB in the beginning and 69.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:39,828 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:14:39,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.41 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 81.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:39,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.10 ms. Allocated memory is still 102.8 MB. Free memory was 81.5 MB in the beginning and 80.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:14:39,836 INFO L168 Benchmark]: Boogie Preprocessor took 34.11 ms. Allocated memory is still 102.8 MB. Free memory was 80.4 MB in the beginning and 79.4 MB in the end (delta: 936.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:39,837 INFO L168 Benchmark]: RCFGBuilder took 486.06 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 67.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:39,838 INFO L168 Benchmark]: CodeCheck took 791.21 ms. Allocated memory is still 102.8 MB. Free memory was 67.8 MB in the beginning and 71.6 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:14:39,838 INFO L168 Benchmark]: Witness Printer took 64.32 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:39,847 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, 20 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 40 SDslu, 68 SDs, 0 SdLazy, 98 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 [L23] COND TRUE x >= y [L24] EXPR c + 1 [L24] c = c + 1 [L25] COND FALSE !(z > 1) [L29] y + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.41 ms. Allocated memory is still 102.8 MB. Free memory was 73.8 MB in the beginning and 81.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.10 ms. Allocated memory is still 102.8 MB. Free memory was 81.5 MB in the beginning and 80.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.11 ms. Allocated memory is still 102.8 MB. Free memory was 80.4 MB in the beginning and 79.4 MB in the end (delta: 936.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 486.06 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 67.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 791.21 ms. Allocated memory is still 102.8 MB. Free memory was 67.8 MB in the beginning and 71.6 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.32 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...