./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/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 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 ..................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 05:12:00,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:12:00,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:12:00,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:12:00,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:12:00,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:12:00,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:12:00,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:12:00,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:12:00,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:12:00,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:12:00,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:12:00,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:12:00,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:12:00,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:12:00,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:12:00,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:12:00,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:12:00,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:12:00,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:12:00,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:12:00,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:12:00,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:12:00,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:12:00,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:12:00,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:12:00,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:12:00,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:12:00,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:12:00,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:12:00,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:12:00,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:12:00,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:12:00,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:12:00,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:12:00,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:12:00,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:12:00,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:12:00,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:12:00,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:12:00,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:12:00,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 05:12:00,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:12:00,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:12:00,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 05:12:00,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 05:12:00,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:12:00,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:12:00,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:12:00,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:12:00,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:12:00,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:12:00,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:12:00,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:12:00,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:12:00,516 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 05:12:00,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:12:00,516 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:12:00,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:12:00,518 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 05:12:00,518 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 05:12:00,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:12:00,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:12:00,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:12:00,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:12:00,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:12:00,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:12:00,519 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 05:12:00,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:12:00,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:12:00,521 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_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/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 -> 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 [2019-11-20 05:12:00,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:12:00,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:12:00,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:12:00,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:12:00,711 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:12:00,712 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2019-11-20 05:12:00,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/data/27d7a63c6/069e7791053e43bcb5ecb9dd5e4fafe4/FLAGd6394ec2d [2019-11-20 05:12:01,158 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:12:01,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2019-11-20 05:12:01,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/data/27d7a63c6/069e7791053e43bcb5ecb9dd5e4fafe4/FLAGd6394ec2d [2019-11-20 05:12:01,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/data/27d7a63c6/069e7791053e43bcb5ecb9dd5e4fafe4 [2019-11-20 05:12:01,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:12:01,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:12:01,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:12:01,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:12:01,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:12:01,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca737a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01, skipping insertion in model container [2019-11-20 05:12:01,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:12:01,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:12:01,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:12:01,799 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:12:01,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:12:01,915 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:12:01,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01 WrapperNode [2019-11-20 05:12:01,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:12:01,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:12:01,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:12:01,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:12:01,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:12:01,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:12:01,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:12:01,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:12:01,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... [2019-11-20 05:12:01,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:12:01,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:12:01,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:12:01,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:12:01,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/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 [2019-11-20 05:12:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:12:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:12:02,307 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:12:02,308 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:12:02,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:02 BoogieIcfgContainer [2019-11-20 05:12:02,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:12:02,309 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 05:12:02,310 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 05:12:02,321 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 05:12:02,321 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:02" (1/1) ... [2019-11-20 05:12:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:12:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2019-11-20 05:12:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-20 05:12:02,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:12:02,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:12:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:12:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-11-20 05:12:02,565 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-20 05:12:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:12:02,566 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:12:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:12:02,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2019-11-20 05:12:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-11-20 05:12:02,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 05:12:02,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:12:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:12:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2019-11-20 05:12:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2019-11-20 05:12:03,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 05:12:03,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:12:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:12:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2019-11-20 05:12:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2019-11-20 05:12:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 05:12:03,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:12:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:12:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:12:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:12:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:12:03,559 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2019-11-20 05:12:03,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:12:03 ImpRootNode [2019-11-20 05:12:03,585 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 05:12:03,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:12:03,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:12:03,586 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:12:03,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:02" (3/4) ... [2019-11-20 05:12:03,588 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 05:12:03,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a45c7ff1-ee15-4a4e-b16c-7d42d9700cd3/bin/ukojak/witness.graphml [2019-11-20 05:12:03,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:12:03,643 INFO L168 Benchmark]: Toolchain (without parser) took 2071.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.4 MB in the beginning and 967.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:03,644 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:03,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:03,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.32 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. [2019-11-20 05:12:03,645 INFO L168 Benchmark]: Boogie Preprocessor took 17.16 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. [2019-11-20 05:12:03,647 INFO L168 Benchmark]: RCFGBuilder took 341.77 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:03,648 INFO L168 Benchmark]: CodeCheck took 1275.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.5 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:03,648 INFO L168 Benchmark]: Witness Printer took 56.08 ms. Allocated memory is still 1.1 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:03,652 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 1 procedures, 16 locations, 6 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 [L29] oldx + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.32 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 17.16 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 341.77 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * CodeCheck took 1275.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.5 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.08 ms. Allocated memory is still 1.1 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...