./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.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_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/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 8920989884f6f43fe034219867b1db3db8f5287c .............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:34:37,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:34:37,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:34:37,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:34:37,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:34:37,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:34:37,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:34:37,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:34:37,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:34:37,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:34:37,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:34:37,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:34:37,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:34:37,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:34:37,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:34:37,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:34:37,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:34:37,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:34:37,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:34:37,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:34:37,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:34:37,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:34:37,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:34:37,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:34:37,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:34:37,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:34:37,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:34:37,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:34:37,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:34:37,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:34:37,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:34:37,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:34:37,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:34:37,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:34:37,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:34:37,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:34:37,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:34:37,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:34:37,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:34:37,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:34:37,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:34:37,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:34:37,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:34:37,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:34:37,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:34:37,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:34:37,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:34:37,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:34:37,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:34:37,727 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:34:37,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:34:37,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:34:37,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:34:37,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:34:37,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:34:37,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:34:37,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:34:37,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:34:37,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:34:37,731 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:34:37,731 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:34:37,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:34:37,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:34:37,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:34:37,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:34:37,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:34:37,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:34:37,734 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:34:37,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:34:37,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:34:37,735 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_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8920989884f6f43fe034219867b1db3db8f5287c [2020-11-28 04:34:38,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:34:38,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:34:38,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:34:38,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:34:38,140 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:34:38,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2020-11-28 04:34:38,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/data/e7773b9e7/f9bd5f68f96d4a50bf31f13d1422afaf/FLAG2f82da2de [2020-11-28 04:34:38,777 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:34:38,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2020-11-28 04:34:38,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/data/e7773b9e7/f9bd5f68f96d4a50bf31f13d1422afaf/FLAG2f82da2de [2020-11-28 04:34:39,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/data/e7773b9e7/f9bd5f68f96d4a50bf31f13d1422afaf [2020-11-28 04:34:39,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:34:39,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:34:39,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:39,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:34:39,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:34:39,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349e3287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39, skipping insertion in model container [2020-11-28 04:34:39,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:34:39,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:34:39,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:39,394 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:34:39,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:39,453 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:34:39,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39 WrapperNode [2020-11-28 04:34:39,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:39,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:39,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:34:39,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:34:39,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:39,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:34:39,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:34:39,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:34:39,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:34:39,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:34:39,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:34:39,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:34:39,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:34:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:34:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:34:40,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:34:40,227 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:34:40,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:40 BoogieIcfgContainer [2020-11-28 04:34:40,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:34:40,231 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:34:40,231 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:34:40,242 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:34:40,242 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:40" (1/1) ... [2020-11-28 04:34:40,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:34:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 45 states and 49 transitions. [2020-11-28 04:34:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-11-28 04:34:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:34:40,306 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 47 states and 52 transitions. [2020-11-28 04:34:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2020-11-28 04:34:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:34:40,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 46 states and 51 transitions. [2020-11-28 04:34:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-11-28 04:34:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:34:40,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:34:40,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:34:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:34:40,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:34:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:34:40,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:34:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:34:40,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:34:40,818 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-28 04:34:40,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:34:40 ImpRootNode [2020-11-28 04:34:40,849 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:34:40,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:34:40,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:34:40,855 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:34:40,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:40" (3/4) ... [2020-11-28 04:34:40,861 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:34:40,931 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_646cd038-9eeb-4fe0-9588-9e8d0ed46f35/bin/ukojak/witness.graphml [2020-11-28 04:34:40,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:34:40,934 INFO L168 Benchmark]: Toolchain (without parser) took 1810.11 ms. Allocated memory was 71.3 MB in the beginning and 100.7 MB in the end (delta: 29.4 MB). Free memory was 38.9 MB in the beginning and 61.5 MB in the end (delta: -22.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:40,935 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:40,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.38 ms. Allocated memory was 71.3 MB in the beginning and 100.7 MB in the end (delta: 29.4 MB). Free memory was 38.7 MB in the beginning and 79.7 MB in the end (delta: -41.0 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:40,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.74 ms. Allocated memory is still 100.7 MB. Free memory was 79.7 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:40,952 INFO L168 Benchmark]: Boogie Preprocessor took 49.91 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 77.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:40,953 INFO L168 Benchmark]: RCFGBuilder took 668.96 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 59.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:40,953 INFO L168 Benchmark]: CodeCheck took 617.79 ms. Allocated memory is still 100.7 MB. Free memory was 59.2 MB in the beginning and 63.0 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:40,954 INFO L168 Benchmark]: Witness Printer took 76.51 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 61.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:40,960 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, 45 locations, 20 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: 0 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 40 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.38 ms. Allocated memory was 71.3 MB in the beginning and 100.7 MB in the end (delta: 29.4 MB). Free memory was 38.7 MB in the beginning and 79.7 MB in the end (delta: -41.0 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.74 ms. Allocated memory is still 100.7 MB. Free memory was 79.7 MB in the beginning and 78.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.91 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 77.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 668.96 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 59.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 617.79 ms. Allocated memory is still 100.7 MB. Free memory was 59.2 MB in the beginning and 63.0 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 76.51 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 61.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...