./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/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 554582d6fc3de8e87f5dd30e5019302b6e1b96be ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:11:24,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:11:24,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:11:24,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:11:24,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:11:24,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:11:24,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:11:24,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:11:24,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:11:24,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:11:24,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:11:24,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:11:24,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:11:24,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:11:24,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:11:24,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:11:24,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:11:24,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:11:24,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:11:24,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:11:24,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:11:24,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:11:24,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:11:24,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:11:24,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:11:24,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:11:24,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:11:24,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:11:24,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:11:24,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:11:24,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:11:24,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:11:24,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:11:24,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:11:24,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:11:24,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:11:24,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:11:24,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:11:24,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:11:24,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:11:24,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:11:24,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:11:24,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:11:24,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:11:24,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:11:24,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:11:24,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:11:24,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:11:24,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:11:24,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:11:24,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:11:24,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:11:24,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:11:24,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:11:24,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:11:24,988 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:11:24,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:11:24,989 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:11:24,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:11:24,989 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:11:24,989 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:11:24,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:11:24,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:11:24,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:11:24,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:11:24,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:11:24,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:11:24,990 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:11:24,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:11:24,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:11:24,991 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/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/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 -> 554582d6fc3de8e87f5dd30e5019302b6e1b96be [2019-10-22 10:11:25,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:11:25,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:11:25,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:11:25,027 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:11:25,028 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:11:25,028 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2019-10-22 10:11:25,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/data/cf9e0b008/4e07566bf900443ba0e6b6880bf4ba00/FLAGa7989bef6 [2019-10-22 10:11:25,459 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:11:25,459 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2019-10-22 10:11:25,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/data/cf9e0b008/4e07566bf900443ba0e6b6880bf4ba00/FLAGa7989bef6 [2019-10-22 10:11:25,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/data/cf9e0b008/4e07566bf900443ba0e6b6880bf4ba00 [2019-10-22 10:11:25,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:11:25,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:11:25,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:25,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:11:25,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:11:25,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f006943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25, skipping insertion in model container [2019-10-22 10:11:25,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:11:25,505 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:11:25,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:25,669 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:11:25,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:25,760 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:11:25,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25 WrapperNode [2019-10-22 10:11:25,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:25,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:25,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:11:25,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:11:25,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:25,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:11:25,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:11:25,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:11:25,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:11:25,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:11:25,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:11:25,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:11:25,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/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 [2019-10-22 10:11:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure p [2019-10-22 10:11:25,855 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2019-10-22 10:11:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:11:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:11:26,039 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:11:26,039 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:11:26,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26 BoogieIcfgContainer [2019-10-22 10:11:26,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:11:26,041 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:11:26,041 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:11:26,055 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:11:26,068 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:11:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2019-10-22 10:11:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-22 10:11:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:11:26,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 32 transitions. [2019-10-22 10:11:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-10-22 10:11:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:11:26,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 31 transitions. [2019-10-22 10:11:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2019-10-22 10:11:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:11:26,502 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 38 transitions. [2019-10-22 10:11:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2019-10-22 10:11:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:11:26,923 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2019-10-22 10:11:27,050 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2019-10-22 10:11:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:11:27,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 41 transitions. [2019-10-22 10:11:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2019-10-22 10:11:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:11:27,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 44 transitions. [2019-10-22 10:11:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-10-22 10:11:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:11:27,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 39 states and 56 transitions. [2019-10-22 10:11:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2019-10-22 10:11:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:11:28,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 60 transitions. [2019-10-22 10:11:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2019-10-22 10:11:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:11:28,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 44 states and 63 transitions. [2019-10-22 10:11:28,988 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2019-10-22 10:11:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:11:28,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 23 transitions. [2019-10-22 10:11:29,494 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 10:11:29,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:11:29,495 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2019-10-22 10:11:29,503 INFO L771 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-10-22 10:11:29,549 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:29,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:11:29 ImpRootNode [2019-10-22 10:11:29,553 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:11:29,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:11:29,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:11:29,553 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:11:29,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26" (3/4) ... [2019-10-22 10:11:29,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:11:29,560 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2019-10-22 10:11:29,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 10:11:29,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 10:11:29,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:11:29,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b5dfe222-1818-4863-8ece-59d0e0fcb30a/bin/ukojak/witness.graphml [2019-10-22 10:11:29,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:11:29,605 INFO L168 Benchmark]: Toolchain (without parser) took 4125.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 944.5 MB in the beginning and 951.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:29,605 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:29,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:29,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:29,606 INFO L168 Benchmark]: Boogie Preprocessor took 16.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:29,607 INFO L168 Benchmark]: RCFGBuilder took 231.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:29,607 INFO L168 Benchmark]: CodeCheck took 3511.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 954.0 MB in the end (delta: 120.7 MB). Peak memory consumption was 207.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:29,607 INFO L168 Benchmark]: Witness Printer took 50.04 ms. Allocated memory is still 1.2 GB. Free memory was 954.0 MB in the beginning and 951.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:29,610 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 2 procedures, 23 locations, 4 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2844 SDtfs, 6284 SDslu, 0 SDs, 0 SdLazy, 29392 SolverSat, 7044 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 979 GetRequests, 830 SyntacticMatches, 53 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 10/28 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 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * CodeCheck took 3511.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 954.0 MB in the end (delta: 120.7 MB). Peak memory consumption was 207.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.04 ms. Allocated memory is still 1.2 GB. Free memory was 954.0 MB in the beginning and 951.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...