./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-1.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_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/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 a3bc8586d8722f62f6c29c16aaad29e5c9f97f34 ...................................................................................................................................................................................................................... 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 17:47:11,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:47:11,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:47:11,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:47:11,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:47:11,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:47:11,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:47:11,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:47:11,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:47:11,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:47:11,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:47:11,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:47:11,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:47:11,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:47:11,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:47:11,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:47:11,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:47:11,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:47:11,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:47:11,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:47:11,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:47:11,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:47:11,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:47:11,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:47:11,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:47:11,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:47:11,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:47:11,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:47:11,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:47:11,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:47:11,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:47:11,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:47:11,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:47:11,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:47:11,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:47:11,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:47:11,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:47:11,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:47:11,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:47:11,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:47:11,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:47:11,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:47:11,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:47:11,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:47:11,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:47:11,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:47:11,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:47:11,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:47:11,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:47:11,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:47:11,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:47:11,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:47:11,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:47:11,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:47:11,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:47:11,622 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:47:11,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:47:11,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:47:11,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:47:11,623 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:47:11,623 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:47:11,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:47:11,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:47:11,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:47:11,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:47:11,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:47:11,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:47:11,625 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:47:11,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:47:11,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:47:11,626 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_e08428d8-17d8-402c-b6b0-31fb4d401be9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bc8586d8722f62f6c29c16aaad29e5c9f97f34 [2020-12-01 17:47:11,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:47:12,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:47:12,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:47:12,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:47:12,013 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:47:12,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-1.c [2020-12-01 17:47:12,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/data/867c43178/6b344ffeaee941cf9066c5e99af5384c/FLAG859844907 [2020-12-01 17:47:12,708 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:47:12,711 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-1.c [2020-12-01 17:47:12,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/data/867c43178/6b344ffeaee941cf9066c5e99af5384c/FLAG859844907 [2020-12-01 17:47:13,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/data/867c43178/6b344ffeaee941cf9066c5e99af5384c [2020-12-01 17:47:13,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:47:13,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:47:13,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:47:13,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:47:13,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:47:13,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36162e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13, skipping insertion in model container [2020-12-01 17:47:13,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:47:13,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:47:13,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:47:13,332 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:47:13,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:47:13,383 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:47:13,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13 WrapperNode [2020-12-01 17:47:13,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:47:13,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:47:13,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:47:13,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:47:13,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:47:13,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:47:13,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:47:13,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:47:13,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:47:13,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:47:13,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:47:13,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:47:13,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:47:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/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 17:47:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:47:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:47:13,764 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:47:13,765 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:47:13,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:13 BoogieIcfgContainer [2020-12-01 17:47:13,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:47:13,768 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:47:13,768 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:47:13,793 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:47:13,793 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:13" (1/1) ... [2020-12-01 17:47:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:47:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-01 17:47:13,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-01 17:47:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:47:13,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:47:14,046 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 17:47:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:47:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 17:47:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 17:47:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:47:14,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:47:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:14,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:14,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:14,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:47:14,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:47:14,191 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-12-01 17:47:14,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:47:14 ImpRootNode [2020-12-01 17:47:14,207 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:47:14,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:47:14,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:47:14,211 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:47:14,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:47:13" (3/4) ... [2020-12-01 17:47:14,214 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:47:14,258 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e08428d8-17d8-402c-b6b0-31fb4d401be9/bin/ukojak/witness.graphml [2020-12-01 17:47:14,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:47:14,263 INFO L168 Benchmark]: Toolchain (without parser) took 1164.36 ms. Allocated memory is still 111.1 MB. Free memory was 84.8 MB in the beginning and 61.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:14,264 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:14,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.62 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 89.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:14,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 88.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:14,271 INFO L168 Benchmark]: Boogie Preprocessor took 18.01 ms. Allocated memory is still 111.1 MB. Free memory was 88.3 MB in the beginning and 87.3 MB in the end (delta: 994.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:14,271 INFO L168 Benchmark]: RCFGBuilder took 324.67 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 76.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:14,272 INFO L168 Benchmark]: CodeCheck took 439.29 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 62.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:47:14,273 INFO L168 Benchmark]: Witness Printer took 48.12 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 61.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:47:14,283 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, 7 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, b; [L16] x = __VERIFIER_nondet_int() [L17] b = __VERIFIER_nondet_int() [L18] COND TRUE b != 0 [L19] b = __VERIFIER_nondet_int() [L20] x - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.62 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 89.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 88.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.01 ms. Allocated memory is still 111.1 MB. Free memory was 88.3 MB in the beginning and 87.3 MB in the end (delta: 994.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 324.67 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 76.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 439.29 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 62.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 48.12 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 61.0 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...