./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/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 d3ded6f4470c26b608997f650ebe66ef1cf6f845 ............................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 11:47:00,943 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:47:00,945 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:47:00,952 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:47:00,952 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:47:00,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:47:00,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:47:00,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:47:00,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:47:00,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:47:00,957 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:47:00,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:47:00,958 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:47:00,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:47:00,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:47:00,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:47:00,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:47:00,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:47:00,963 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:47:00,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:47:00,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:47:00,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:47:00,967 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:47:00,968 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:47:00,968 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:47:00,968 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:47:00,969 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:47:00,970 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:47:00,970 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:47:00,971 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:47:00,971 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:47:00,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:47:00,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:47:00,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:47:00,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:47:00,973 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:47:00,973 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 11:47:00,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:47:00,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:47:00,984 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:47:00,984 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:47:00,985 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:47:00,985 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:47:00,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:47:00,985 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:47:00,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:47:00,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:47:00,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:47:00,986 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 11:47:00,986 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 11:47:00,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:47:00,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 11:47:00,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:47:00,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:47:00,988 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/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 -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2018-11-10 11:47:01,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:47:01,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:47:01,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:47:01,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:47:01,020 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:47:01,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c [2018-11-10 11:47:01,065 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/data/5b6e6f4be/51d1f8e2f3a34c48955ea8eefae82921/FLAG9212d19f0 [2018-11-10 11:47:01,373 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:47:01,375 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c [2018-11-10 11:47:01,378 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/data/5b6e6f4be/51d1f8e2f3a34c48955ea8eefae82921/FLAG9212d19f0 [2018-11-10 11:47:01,389 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/data/5b6e6f4be/51d1f8e2f3a34c48955ea8eefae82921 [2018-11-10 11:47:01,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:47:01,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:47:01,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:47:01,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:47:01,395 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:47:01,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe532c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01, skipping insertion in model container [2018-11-10 11:47:01,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:47:01,414 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:47:01,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:47:01,511 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:47:01,520 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:47:01,528 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:47:01,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01 WrapperNode [2018-11-10 11:47:01,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:47:01,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:47:01,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:47:01,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:47:01,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:47:01,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:47:01,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:47:01,549 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:47:01,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:47:01,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:47:01,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:47:01,559 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:47:01,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/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 [2018-11-10 11:47:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:47:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:47:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2018-11-10 11:47:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2018-11-10 11:47:01,782 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:47:01,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:01 BoogieIcfgContainer [2018-11-10 11:47:01,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:47:01,783 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 11:47:01,783 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 11:47:01,792 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 11:47:01,793 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:01" (1/1) ... [2018-11-10 11:47:01,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:47:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:47:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-11-10 11:47:01,838 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-10 11:47:01,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 11:47:01,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:47:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:47:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2018-11-10 11:47:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-10 11:47:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 11:47:02,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:47:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:47:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2018-11-10 11:47:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-11-10 11:47:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 11:47:02,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:47:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:47:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:47:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:47:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:47:02,321 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-10 11:47:02,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 11:47:02 ImpRootNode [2018-11-10 11:47:02,348 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 11:47:02,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:47:02,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:47:02,349 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:47:02,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:01" (3/4) ... [2018-11-10 11:47:02,352 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:47:02,383 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fef0ad2f-4dea-408f-afe0-18d20295d8d3/bin-2019/ukojak/witness.graphml [2018-11-10 11:47:02,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:47:02,384 INFO L168 Benchmark]: Toolchain (without parser) took 991.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,384 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:47:02,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.38 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.90 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:47:02,385 INFO L168 Benchmark]: Boogie Preprocessor took 9.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,386 INFO L168 Benchmark]: RCFGBuilder took 223.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,386 INFO L168 Benchmark]: CodeCheck took 565.70 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,387 INFO L168 Benchmark]: Witness Printer took 34.53 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:02,389 INFO L336 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, 28 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 92 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 20 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, 21 NumberOfCodeBlocks, 21 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L28] CALL rev(ls) [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.38 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.90 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 565.70 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. * Witness Printer took 34.53 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...