./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.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_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/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 b51d3ff9a76866bd9c6637bca261a8433dd4524e .......................................................................................................................................................................................................................................................... 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 18:00:25,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:00:25,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:00:25,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:00:25,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:00:25,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:00:25,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:00:25,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:00:25,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:00:25,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:00:25,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:00:25,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:00:25,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:00:25,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:00:25,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:00:25,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:00:25,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:00:25,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:00:25,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:00:25,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:00:25,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:00:25,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:00:25,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:00:25,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:00:25,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:00:25,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:00:25,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:00:25,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:00:25,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:00:25,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:00:25,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:00:25,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:00:25,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:00:25,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:00:25,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:00:25,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:00:25,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:00:25,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:00:25,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:00:25,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:00:25,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:00:25,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 18:00:25,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:00:25,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:00:25,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:00:25,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:00:25,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:00:25,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:00:25,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:00:25,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:00:25,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:00:25,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:00:25,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:00:25,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:00:25,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:00:25,815 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 18:00:25,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:00:25,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:00:25,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:00:25,816 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:00:25,816 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:00:25,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:00:25,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:00:25,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:00:25,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:00:25,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:00:25,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:00:25,818 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:00:25,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:00:25,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:00:25,819 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_bf1f22d3-b5a3-491d-9628-79870b24d95c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51d3ff9a76866bd9c6637bca261a8433dd4524e [2020-12-01 18:00:26,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:00:26,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:00:26,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:00:26,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:00:26,121 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:00:26,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2020-12-01 18:00:26,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/data/ea1f0dd91/a08f2fe18da14451916416e79d52265c/FLAG680f3cdac [2020-12-01 18:00:26,668 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:00:26,669 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2020-12-01 18:00:26,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/data/ea1f0dd91/a08f2fe18da14451916416e79d52265c/FLAG680f3cdac [2020-12-01 18:00:27,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/data/ea1f0dd91/a08f2fe18da14451916416e79d52265c [2020-12-01 18:00:27,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:00:27,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:00:27,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:00:27,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:00:27,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:00:27,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d586db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27, skipping insertion in model container [2020-12-01 18:00:27,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:00:27,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:00:27,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:00:27,319 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:00:27,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:00:27,352 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:00:27,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27 WrapperNode [2020-12-01 18:00:27,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:00:27,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:00:27,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:00:27,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:00:27,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:00:27,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:00:27,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:00:27,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:00:27,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:00:27,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:00:27,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:00:27,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:00:27,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:00:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/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 18:00:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:00:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:00:27,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:00:27,937 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 18:00:27,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:27 BoogieIcfgContainer [2020-12-01 18:00:27,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:00:27,942 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:00:27,942 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:00:27,959 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:00:27,960 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:27" (1/1) ... [2020-12-01 18:00:27,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:00:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-12-01 18:00:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 18:00:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:00:28,054 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:00:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2020-12-01 18:00:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-12-01 18:00:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:00:28,208 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:00:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-12-01 18:00:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-12-01 18:00:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:00:28,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:00:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:28,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2020-12-01 18:00:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-12-01 18:00:28,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:00:28,473 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:00:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:28,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2020-12-01 18:00:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-12-01 18:00:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:00:28,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:00:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:00:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:00:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2020-12-01 18:00:29,137 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2020-12-01 18:00:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:00:29,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:00:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:00:29,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:00:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:00:29,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:00:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:00:29,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:00:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:00:29,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:00:29,234 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-12-01 18:00:29,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:00:29 ImpRootNode [2020-12-01 18:00:29,262 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:00:29,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:00:29,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:00:29,265 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:00:29,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:00:27" (3/4) ... [2020-12-01 18:00:29,268 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:00:29,332 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf1f22d3-b5a3-491d-9628-79870b24d95c/bin/ukojak/witness.graphml [2020-12-01 18:00:29,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:00:29,337 INFO L168 Benchmark]: Toolchain (without parser) took 2284.04 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.0 MB in the beginning and 53.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:29,338 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 90.2 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:00:29,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.88 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 69.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:29,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 68.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:00:29,342 INFO L168 Benchmark]: Boogie Preprocessor took 47.65 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 964.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:00:29,345 INFO L168 Benchmark]: RCFGBuilder took 495.30 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 52.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:29,348 INFO L168 Benchmark]: CodeCheck took 1320.17 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 55.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:29,349 INFO L168 Benchmark]: Witness Printer took 69.36 ms. Allocated memory is still 109.1 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:00:29,355 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, 19 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 178 SDslu, 232 SDs, 0 SdLazy, 370 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n; [L15] n = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] COND TRUE x >= 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0) [L22] EXPR x - 1 [L22] x = x - 1 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0 [L24] y + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 90.2 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.88 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 69.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 68.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.65 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 964.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 495.30 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 52.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1320.17 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 55.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Witness Printer took 69.36 ms. Allocated memory is still 109.1 MB. Free memory was 55.3 MB in the beginning and 53.2 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...