./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/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 32bit --witnessprinter.graph.data.programhash 08bbe2c494adbfbcc4d1f2aa863ee46abea55656 .................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-01 23:34:12,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 23:34:12,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 23:34:12,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 23:34:12,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 23:34:12,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 23:34:12,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 23:34:12,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 23:34:12,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 23:34:12,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 23:34:12,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 23:34:12,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 23:34:12,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 23:34:12,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 23:34:12,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 23:34:12,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 23:34:12,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 23:34:12,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 23:34:12,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 23:34:12,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 23:34:12,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 23:34:12,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 23:34:12,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 23:34:12,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 23:34:12,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 23:34:12,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 23:34:12,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 23:34:12,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 23:34:12,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 23:34:12,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 23:34:12,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 23:34:12,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 23:34:12,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 23:34:12,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 23:34:12,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 23:34:12,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 23:34:12,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 23:34:12,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 23:34:12,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 23:34:12,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 23:34:12,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 23:34:12,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-12-01 23:34:12,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 23:34:12,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 23:34:12,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 23:34:12,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 23:34:12,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 23:34:12,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 23:34:12,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 23:34:12,095 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 23:34:12,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 23:34:12,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 23:34:12,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 23:34:12,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 23:34:12,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 23:34:12,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 23:34:12,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 23:34:12,096 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-01 23:34:12,097 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 23:34:12,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 23:34:12,097 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 23:34:12,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 23:34:12,097 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 23:34:12,098 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 23:34:12,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 23:34:12,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 23:34:12,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 23:34:12,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 23:34:12,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 23:34:12,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 23:34:12,099 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 23:34:12,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 23:34:12,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 23:34:12,100 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_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08bbe2c494adbfbcc4d1f2aa863ee46abea55656 [2019-12-01 23:34:12,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 23:34:12,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 23:34:12,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 23:34:12,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 23:34:12,218 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 23:34:12,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2019-12-01 23:34:12,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/data/fb0701551/d85f42c551f44455b1cb13b5e7a38e9d/FLAG182744882 [2019-12-01 23:34:12,649 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 23:34:12,649 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2019-12-01 23:34:12,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/data/fb0701551/d85f42c551f44455b1cb13b5e7a38e9d/FLAG182744882 [2019-12-01 23:34:12,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/data/fb0701551/d85f42c551f44455b1cb13b5e7a38e9d [2019-12-01 23:34:12,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 23:34:12,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 23:34:12,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 23:34:12,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 23:34:12,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 23:34:12,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e24b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12, skipping insertion in model container [2019-12-01 23:34:12,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 23:34:12,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 23:34:12,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:34:12,783 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 23:34:12,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 23:34:12,838 INFO L208 MainTranslator]: Completed translation [2019-12-01 23:34:12,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12 WrapperNode [2019-12-01 23:34:12,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 23:34:12,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 23:34:12,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 23:34:12,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 23:34:12,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 23:34:12,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 23:34:12,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 23:34:12,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 23:34:12,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... [2019-12-01 23:34:12,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 23:34:12,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 23:34:12,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 23:34:12,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 23:34:12,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:34:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/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 [2019-12-01 23:34:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 23:34:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 23:34:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-12-01 23:34:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-12-01 23:34:13,043 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 23:34:13,044 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 23:34:13,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:34:13 BoogieIcfgContainer [2019-12-01 23:34:13,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 23:34:13,045 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 23:34:13,045 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 23:34:13,052 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 23:34:13,052 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:34:13" (1/1) ... [2019-12-01 23:34:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 23:34:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:34:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2019-12-01 23:34:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-12-01 23:34:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 23:34:13,086 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:34:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 23:34:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 23:34:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 23:34:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 23 transitions. [2019-12-01 23:34:13,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-12-01 23:34:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 23:34:13,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 23:34:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:34:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:34:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:34:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 23:34:13,273 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-12-01 23:34:13,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:34:13 ImpRootNode [2019-12-01 23:34:13,289 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 23:34:13,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 23:34:13,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 23:34:13,289 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 23:34:13,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:34:13" (3/4) ... [2019-12-01 23:34:13,291 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 23:34:13,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f24b5ac-bd7a-418d-bf0d-a29e2b610a43/bin/ukojak/witness.graphml [2019-12-01 23:34:13,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 23:34:13,317 INFO L168 Benchmark]: Toolchain (without parser) took 652.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -98.3 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-12-01 23:34:13,317 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:34:13,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-01 23:34:13,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.95 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. [2019-12-01 23:34:13,318 INFO L168 Benchmark]: Boogie Preprocessor took 10.84 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. [2019-12-01 23:34:13,319 INFO L168 Benchmark]: RCFGBuilder took 173.31 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-01 23:34:13,319 INFO L168 Benchmark]: CodeCheck took 243.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-01 23:34:13,319 INFO L168 Benchmark]: Witness Printer took 26.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 23:34:13,321 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, 18 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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: 6]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int input = __VERIFIER_nondet_int(); [L13] CALL id(input) VAL [\old(x)=-2147483648] [L5] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L6] x-1 VAL [\old(x)=-2147483648, x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.95 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 10.84 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 173.31 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 243.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 26.64 ms. Allocated memory is still 1.1 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...