./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2a.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_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/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 a87305f2bf70381ae4b40b8cfb9e2ca1c7e8a065 ............................................................................................................................................................................................................... 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-cad4683 [2019-10-22 10:18:13,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:18:13,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:18:13,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:18:13,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:18:13,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:18:13,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:18:13,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:18:13,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:18:13,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:18:13,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:18:13,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:18:13,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:18:13,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:18:13,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:18:13,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:18:13,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:18:13,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:18:13,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:18:13,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:18:13,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:18:13,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:18:13,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:18:13,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:18:13,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:18:13,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:18:13,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:18:13,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:18:13,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:18:13,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:18:13,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:18:13,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:18:13,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:18:13,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:18:13,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:18:13,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:18:13,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:18:13,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:18:13,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:18:13,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:18:13,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:18:13,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:18:13,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:18:13,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:18:13,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:18:13,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:18:13,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:18:13,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:18:13,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:18:13,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:18:13,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:18:13,163 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:18:13,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:18:13,163 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:18:13,163 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:18:13,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:18:13,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:18:13,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:18:13,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:18:13,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:18:13,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:18:13,164 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:18:13,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:18:13,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:18:13,165 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_67b4b12a-d744-4c83-aec5-d5231c305006/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 -> a87305f2bf70381ae4b40b8cfb9e2ca1c7e8a065 [2019-10-22 10:18:13,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:18:13,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:18:13,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:18:13,213 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:18:13,213 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:18:13,214 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/../../sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c [2019-10-22 10:18:13,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/data/6f9d6ffb4/feb038604e45465cb92166c1b02700ed/FLAG5f4577631 [2019-10-22 10:18:13,616 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:18:13,617 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c [2019-10-22 10:18:13,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/data/6f9d6ffb4/feb038604e45465cb92166c1b02700ed/FLAG5f4577631 [2019-10-22 10:18:14,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/data/6f9d6ffb4/feb038604e45465cb92166c1b02700ed [2019-10-22 10:18:14,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:18:14,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:18:14,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:18:14,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:18:14,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:18:14,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf52f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14, skipping insertion in model container [2019-10-22 10:18:14,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,052 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:18:14,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:18:14,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:18:14,179 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:18:14,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:18:14,254 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:18:14,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14 WrapperNode [2019-10-22 10:18:14,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:18:14,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:18:14,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:18:14,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:18:14,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:18:14,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:18:14,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:18:14,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:18:14,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:18:14,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:18:14,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:18:14,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:18:14,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/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 10:18:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-10-22 10:18:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-10-22 10:18:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:18:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:18:14,584 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:18:14,585 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:18:14,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:14 BoogieIcfgContainer [2019-10-22 10:18:14,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:18:14,586 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:18:14,586 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:18:14,600 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:18:14,600 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:14" (1/1) ... [2019-10-22 10:18:14,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:18:14,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:18:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-10-22 10:18:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-22 10:18:14,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:18:14,655 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:18:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:18:14,834 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 10:18:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:18:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 23 transitions. [2019-10-22 10:18:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 10:18:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:18:14,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:18:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:18:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:18:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:18:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:18:14,979 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-10-22 10:18:14,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:18:14 ImpRootNode [2019-10-22 10:18:14,999 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:18:14,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:18:14,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:18:15,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:18:15,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:14" (3/4) ... [2019-10-22 10:18:15,003 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:18:15,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_67b4b12a-d744-4c83-aec5-d5231c305006/bin/ukojak/witness.graphml [2019-10-22 10:18:15,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:18:15,034 INFO L168 Benchmark]: Toolchain (without parser) took 1000.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:18:15,035 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:18:15,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:18:15,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.97 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. [2019-10-22 10:18:15,042 INFO L168 Benchmark]: Boogie Preprocessor took 15.28 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. [2019-10-22 10:18:15,043 INFO L168 Benchmark]: RCFGBuilder took 288.68 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:18:15,043 INFO L168 Benchmark]: CodeCheck took 412.88 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:18:15,044 INFO L168 Benchmark]: Witness Printer took 33.62 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. [2019-10-22 10:18:15,046 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, 16 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 19 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L19] int x = __VERIFIER_nondet_int(); [L20] CALL g(x) VAL [\old(x)=-2147483648] [L12] COND FALSE !(x == 0) VAL [\old(x)=-2147483648, x=-2147483648] [L15] x - 1 VAL [\old(x)=-2147483648, x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 220.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.97 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 15.28 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. * RCFGBuilder took 288.68 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 412.88 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 33.62 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. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...