./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/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 f1df70d37f8afdd882c0c58eaed03ed11e314407 .............................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-26 02:40:40,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:40:40,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:40:40,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:40:40,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:40:40,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:40:40,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:40:40,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:40:40,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:40:40,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:40:40,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:40:40,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:40:40,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:40:40,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:40:40,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:40:40,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:40:40,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:40:40,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:40:40,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:40:40,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:40:40,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:40:40,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:40:40,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:40:40,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:40:40,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:40:40,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:40:40,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:40:40,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:40:40,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:40:40,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:40:40,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:40:40,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:40:40,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:40:40,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:40:40,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:40:40,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:40:40,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:40:40,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:40:40,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:40:40,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:40:40,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:40:40,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-26 02:40:40,693 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:40:40,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:40:40,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:40:40,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:40:40,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:40:40,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:40:40,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:40:40,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:40:40,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:40:40,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:40:40,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:40:40,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:40:40,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:40:40,697 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:40:40,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:40:40,697 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:40:40,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:40:40,698 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:40:40,698 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:40:40,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:40:40,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:40:40,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:40:40,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:40:40,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:40:40,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:40:40,699 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:40:40,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:40:40,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:40:40,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_82abf9f4-8e5b-4c89-848a-de6fe51427c6/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 -> f1df70d37f8afdd882c0c58eaed03ed11e314407 [2019-11-26 02:40:40,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:40:40,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:40:40,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:40:40,866 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:40:40,867 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:40:40,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2019-11-26 02:40:40,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/data/8777f6847/37eeff241b7f4505b4ef5a10289beb9c/FLAG0369f1f17 [2019-11-26 02:40:41,264 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:40:41,264 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2019-11-26 02:40:41,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/data/8777f6847/37eeff241b7f4505b4ef5a10289beb9c/FLAG0369f1f17 [2019-11-26 02:40:41,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/data/8777f6847/37eeff241b7f4505b4ef5a10289beb9c [2019-11-26 02:40:41,645 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:40:41,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:40:41,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:41,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:40:41,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:40:41,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:41,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4790c850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41, skipping insertion in model container [2019-11-26 02:40:41,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:41,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:40:41,683 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:40:41,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:41,884 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:40:41,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:41,969 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:40:41,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41 WrapperNode [2019-11-26 02:40:41,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:41,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:41,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:40:41,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:40:41,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:41,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:42,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:40:42,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:40:42,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:40:42,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... [2019-11-26 02:40:42,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:40:42,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:40:42,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:40:42,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:40:42,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/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 [2019-11-26 02:40:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-26 02:40:42,077 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-26 02:40:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-26 02:40:42,078 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-26 02:40:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:40:42,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:40:42,288 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:40:42,288 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:40:42,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:42 BoogieIcfgContainer [2019-11-26 02:40:42,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:40:42,290 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:40:42,290 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:40:42,302 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:40:42,302 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:42" (1/1) ... [2019-11-26 02:40:42,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:40:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:40:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2019-11-26 02:40:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-11-26 02:40:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:40:42,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:40:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:40:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:40:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2019-11-26 02:40:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-11-26 02:40:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:40:42,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:40:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:40:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:40:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2019-11-26 02:40:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-26 02:40:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:40:42,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:40:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:40:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:40:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:40:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:40:42,976 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-11-26 02:40:43,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:40:43 ImpRootNode [2019-11-26 02:40:43,002 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:40:43,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:40:43,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:40:43,003 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:40:43,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:42" (3/4) ... [2019-11-26 02:40:43,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:40:43,062 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_82abf9f4-8e5b-4c89-848a-de6fe51427c6/bin/ukojak/witness.graphml [2019-11-26 02:40:43,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:40:43,068 INFO L168 Benchmark]: Toolchain (without parser) took 1417.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -112.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,069 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:40:43,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,071 INFO L168 Benchmark]: Boogie Preprocessor took 16.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,072 INFO L168 Benchmark]: RCFGBuilder took 270.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,075 INFO L168 Benchmark]: CodeCheck took 712.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,076 INFO L168 Benchmark]: Witness Printer took 59.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:43,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 24 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 18 SDslu, 0 SDs, 0 SdLazy, 94 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L30] int i = __VERIFIER_nondet_int(); [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE i >= 0 && x >= 0 [L33] CALL f(i,x) VAL [\old(i)=2147483647, \old(x)=1] [L18] COND FALSE !(i==0) VAL [\old(i)=2147483647, \old(x)=1, i=2147483647, x=1] [L21] EXPR i-1 VAL [\old(i)=2147483647, \old(x)=1, i=2147483647, x=1] [L21] CALL g(i-1,x,i) VAL [\old(a)=2147483646, \old(b)=1, \old(c)=2147483647] [L26] b+c VAL [\old(a)=2147483646, \old(b)=1, \old(c)=2147483647, a=2147483646, b=1, c=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 270.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * CodeCheck took 712.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 59.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...