./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.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_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c -s /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/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 84b0699039fdd709a3306cfa354f9fcc70db171e ........................................................................................................................................................................................................................... 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 03:25:58,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:25:58,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:25:58,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:25:58,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:25:58,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:25:58,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:25:58,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:25:58,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:25:58,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:25:58,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:25:58,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:25:58,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:25:58,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:25:58,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:25:58,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:25:58,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:25:58,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:25:58,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:25:58,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:25:58,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:25:58,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:25:58,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:25:58,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:25:58,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:25:58,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:25:58,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:25:58,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:25:58,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:25:58,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:25:58,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:25:58,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:25:58,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:25:58,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:25:58,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:25:58,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:25:58,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:25:58,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:25:58,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:25:58,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:25:58,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:25:58,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 03:25:58,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:25:58,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:25:58,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 03:25:58,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 03:25:58,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:25:58,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:25:58,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:25:58,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:25:58,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:25:58,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:25:58,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:25:58,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:25:58,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:25:58,220 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 03:25:58,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:25:58,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:25:58,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:25:58,221 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 03:25:58,221 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 03:25:58,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:25:58,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:25:58,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 03:25:58,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:25:58,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:25:58,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:25:58,223 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 03:25:58,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:25:58,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:25:58,224 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_155ec903-2c9f-49ed-ad3c-386af0fa41d2/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 -> 84b0699039fdd709a3306cfa354f9fcc70db171e [2019-11-20 03:25:58,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:25:58,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:25:58,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:25:58,401 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:25:58,401 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:25:58,402 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-11-20 03:25:58,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/data/8186fca5c/a063d98575b54313813da5a6cc49920f/FLAGe17c5aa07 [2019-11-20 03:25:58,906 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:25:58,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2019-11-20 03:25:58,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/data/8186fca5c/a063d98575b54313813da5a6cc49920f/FLAGe17c5aa07 [2019-11-20 03:25:59,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/data/8186fca5c/a063d98575b54313813da5a6cc49920f [2019-11-20 03:25:59,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:25:59,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:25:59,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:25:59,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:25:59,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:25:59,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3e7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59, skipping insertion in model container [2019-11-20 03:25:59,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,342 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:25:59,363 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:25:59,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:25:59,528 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:25:59,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:25:59,636 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:25:59,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59 WrapperNode [2019-11-20 03:25:59,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:25:59,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:25:59,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:25:59,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:25:59,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:25:59,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:25:59,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:25:59,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:25:59,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... [2019-11-20 03:25:59,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:25:59,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:25:59,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:25:59,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:25:59,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:25:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/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 03:25:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:25:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:26:00,111 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:26:00,111 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 03:26:00,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:26:00 BoogieIcfgContainer [2019-11-20 03:26:00,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:26:00,113 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 03:26:00,113 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 03:26:00,123 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 03:26:00,123 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:26:00" (1/1) ... [2019-11-20 03:26:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:26:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:26:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-20 03:26:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-20 03:26:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 03:26:00,172 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:26:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:26:00,309 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 03:26:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:26:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-20 03:26:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-20 03:26:00,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 03:26:00,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:26:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:26:00,391 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 03:26:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:26:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2019-11-20 03:26:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-11-20 03:26:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:26:00,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:26:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:26:00,515 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 03:26:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:26:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2019-11-20 03:26:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2019-11-20 03:26:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:26:00,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:26:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:26:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:26:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:26:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:26:00,980 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-11-20 03:26:01,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 03:26:01 ImpRootNode [2019-11-20 03:26:01,003 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 03:26:01,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:26:01,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:26:01,004 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:26:01,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:26:00" (3/4) ... [2019-11-20 03:26:01,007 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:26:01,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_155ec903-2c9f-49ed-ad3c-386af0fa41d2/bin/ukojak/witness.graphml [2019-11-20 03:26:01,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:26:01,050 INFO L168 Benchmark]: Toolchain (without parser) took 1723.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -103.7 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:26:01,050 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-20 03:26:01,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:26:01,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.24 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. [2019-11-20 03:26:01,052 INFO L168 Benchmark]: Boogie Preprocessor took 30.95 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. [2019-11-20 03:26:01,053 INFO L168 Benchmark]: RCFGBuilder took 402.94 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:26:01,053 INFO L168 Benchmark]: CodeCheck took 890.14 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:26:01,054 INFO L168 Benchmark]: Witness Printer took 43.38 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. [2019-11-20 03:26:01,057 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, 19 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 30 SDslu, 8 SDs, 0 SdLazy, 126 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, n; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] n = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 && x < n [L28] EXPR -x [L28] -x + y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 312.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.24 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 30.95 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 402.94 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * CodeCheck took 890.14 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * Witness Printer took 43.38 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...