./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1.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_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/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 d7d414d68736ab19121f0afd030fc9c628e90ba4 .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:00:14,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:00:14,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:00:14,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:00:14,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:00:14,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:00:14,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:00:14,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:00:14,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:00:14,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:00:14,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:00:14,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:00:14,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:00:14,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:00:14,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:00:14,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:00:14,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:00:14,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:00:14,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:00:14,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:00:14,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:00:14,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:00:14,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:00:14,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:00:14,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:00:14,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:00:14,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:00:14,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:00:14,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:00:14,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:00:15,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:00:15,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:00:15,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:00:15,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:00:15,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:00:15,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:00:15,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:00:15,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:00:15,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:00:15,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:00:15,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:00:15,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 01:00:15,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:00:15,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:00:15,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:00:15,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:00:15,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:00:15,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:00:15,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:00:15,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:00:15,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:00:15,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:00:15,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:00:15,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:00:15,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:00:15,050 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:00:15,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:00:15,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:00:15,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:00:15,052 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:00:15,052 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:00:15,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:00:15,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:00:15,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:00:15,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:00:15,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:00:15,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:00:15,055 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:00:15,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:00:15,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:00:15,056 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_853abece-7b21-4cfa-8838-6f2f90c79121/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7d414d68736ab19121f0afd030fc9c628e90ba4 [2020-11-30 01:00:15,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:00:15,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:00:15,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:00:15,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:00:15,390 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:00:15,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1.c [2020-11-30 01:00:15,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/data/050accecd/a19c8ab22b5f452587c487987435498c/FLAGa0f0d7139 [2020-11-30 01:00:16,065 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:00:16,067 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1.c [2020-11-30 01:00:16,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/data/050accecd/a19c8ab22b5f452587c487987435498c/FLAGa0f0d7139 [2020-11-30 01:00:16,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/data/050accecd/a19c8ab22b5f452587c487987435498c [2020-11-30 01:00:16,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:00:16,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:00:16,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:16,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:00:16,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:00:16,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6cf61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16, skipping insertion in model container [2020-11-30 01:00:16,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:00:16,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:00:16,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:16,728 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:00:16,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:16,783 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:00:16,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16 WrapperNode [2020-11-30 01:00:16,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:16,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:16,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:00:16,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:00:16,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:16,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:00:16,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:00:16,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:00:16,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... [2020-11-30 01:00:16,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:00:16,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:00:16,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:00:16,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:00:16,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:00:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:00:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:00:17,343 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:00:17,343 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:00:17,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:17 BoogieIcfgContainer [2020-11-30 01:00:17,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:00:17,347 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:00:17,347 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:00:17,365 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:00:17,365 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:17" (1/1) ... [2020-11-30 01:00:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:00:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-30 01:00:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-30 01:00:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:00:17,474 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:00:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:00:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-30 01:00:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-30 01:00:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:00:17,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:00:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:00:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-30 01:00:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-30 01:00:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:00:17,906 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:00:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:17,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:17,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:17,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:18,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:18,015 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-30 01:00:18,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:00:18 ImpRootNode [2020-11-30 01:00:18,038 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:00:18,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:00:18,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:00:18,040 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:00:18,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:17" (3/4) ... [2020-11-30 01:00:18,043 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:00:18,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_853abece-7b21-4cfa-8838-6f2f90c79121/bin/ukojak/witness.graphml [2020-11-30 01:00:18,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:00:18,089 INFO L168 Benchmark]: Toolchain (without parser) took 1640.22 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 70.9 MB in the beginning and 103.7 MB in the end (delta: -32.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:18,089 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:18,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.22 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 76.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:18,091 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.52 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:18,092 INFO L168 Benchmark]: Boogie Preprocessor took 40.59 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.8 MB in the end (delta: 963.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:18,093 INFO L168 Benchmark]: RCFGBuilder took 466.90 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 62.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:18,094 INFO L168 Benchmark]: CodeCheck took 691.53 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 62.1 MB in the beginning and 105.8 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:18,095 INFO L168 Benchmark]: Witness Printer took 46.67 ms. Allocated memory is still 138.4 MB. Free memory was 105.1 MB in the beginning and 103.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:18,100 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, 15 locations, 4 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, 4 SDslu, 0 SDs, 0 SdLazy, 38 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 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: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int id, maxId, tmp; [L17] id = __VERIFIER_nondet_int() [L18] maxId = __VERIFIER_nondet_int() [L21] COND TRUE 0 <= id && id < maxId [L22] EXPR id+1 [L22] tmp = id+1 [L23] tmp!=id && __VERIFIER_nondet_int() != 0 [L23] tmp!=id && __VERIFIER_nondet_int() != 0 [L23] COND TRUE tmp!=id && __VERIFIER_nondet_int() != 0 [L24] COND TRUE tmp <= maxId [L25] tmp + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.22 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 76.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.52 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.59 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.8 MB in the end (delta: 963.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 466.90 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 62.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 691.53 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 62.1 MB in the beginning and 105.8 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 46.67 ms. Allocated memory is still 138.4 MB. Free memory was 105.1 MB in the beginning and 103.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...