./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/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 5155088d89d02424835a418b2f1dfc7cb44efefa .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:36:19,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:19,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:19,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:19,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:19,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:19,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:19,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:19,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:19,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:19,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:19,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:19,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:19,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:19,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:19,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:19,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:19,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:19,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:19,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:19,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:19,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:19,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:19,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:19,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:19,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:19,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:19,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:19,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:19,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:19,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:19,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:19,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:19,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:19,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:19,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:19,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:19,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:19,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:19,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:19,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:19,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-26 02:36:19,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:19,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:19,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:19,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:36:19,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:36:19,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:36:19,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:19,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:36:19,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:19,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:19,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:19,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:19,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:19,918 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:36:19,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:19,919 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:36:19,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:19,919 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:36:19,920 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:36:19,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:19,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:19,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:36:19,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:19,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:19,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:19,921 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:36:19,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:19,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:19,922 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_ff80b520-932e-4f40-b114-709dac2020c1/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 -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2019-11-26 02:36:20,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:20,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:20,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:20,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:20,105 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:20,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2019-11-26 02:36:20,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/data/60f1294a8/29b55d589917419c9996ddad101e520c/FLAG1136ea020 [2019-11-26 02:36:20,520 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:20,521 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2019-11-26 02:36:20,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/data/60f1294a8/29b55d589917419c9996ddad101e520c/FLAG1136ea020 [2019-11-26 02:36:20,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/data/60f1294a8/29b55d589917419c9996ddad101e520c [2019-11-26 02:36:20,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:20,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:20,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:20,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:20,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:20,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:20" (1/1) ... [2019-11-26 02:36:20,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f98008a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:20, skipping insertion in model container [2019-11-26 02:36:20,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:20" (1/1) ... [2019-11-26 02:36:20,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:20,987 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:21,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:21,119 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:21,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:21,209 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:21,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21 WrapperNode [2019-11-26 02:36:21,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:21,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:21,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:21,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:21,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:21,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:21,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:21,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:21,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:21,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:21,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:21,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:21,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:36:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:21,561 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:21,562 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:36:21,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:21 BoogieIcfgContainer [2019-11-26 02:36:21,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:21,563 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:36:21,563 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:36:21,572 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:36:21,573 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:21" (1/1) ... [2019-11-26 02:36:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2019-11-26 02:36:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-26 02:36:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:36:21,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-11-26 02:36:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-26 02:36:21,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:36:21,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2019-11-26 02:36:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-11-26 02:36:22,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:36:22,176 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2019-11-26 02:36:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2019-11-26 02:36:22,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:36:22,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:36:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2019-11-26 02:36:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2019-11-26 02:36:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:36:22,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:36:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:22,780 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2019-11-26 02:36:22,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:36:22 ImpRootNode [2019-11-26 02:36:22,804 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:36:22,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:22,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:22,806 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:22,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:21" (3/4) ... [2019-11-26 02:36:22,808 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:36:22,846 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff80b520-932e-4f40-b114-709dac2020c1/bin/ukojak/witness.graphml [2019-11-26 02:36:22,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:22,848 INFO L168 Benchmark]: Toolchain (without parser) took 1888.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -52.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:22,849 INFO L168 Benchmark]: CDTParser took 0.89 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. [2019-11-26 02:36:22,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:22,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:22,851 INFO L168 Benchmark]: Boogie Preprocessor took 16.89 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:22,851 INFO L168 Benchmark]: RCFGBuilder took 307.79 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:22,852 INFO L168 Benchmark]: CodeCheck took 1241.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:22,852 INFO L168 Benchmark]: Witness Printer took 41.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:22,855 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: 1.1s, 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, 0.7s 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 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 249.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.89 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 307.79 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * CodeCheck took 1241.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.7 MB). Peak memory consumption was 102.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...