./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Gothenburg-2.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_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Gothenburg-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash abc8c011037b18d2b04821c19a29c782ed95f149 ........................................................................................................................................................................................................................... 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 09:00:44,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:44,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:44,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:44,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:44,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:44,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:44,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:44,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:44,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:44,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:44,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:44,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:44,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:44,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:44,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:44,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:44,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:44,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:44,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:44,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:44,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:44,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:44,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:44,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:44,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:44,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:44,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:44,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:44,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:44,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:44,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:44,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:44,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:44,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:44,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:44,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:44,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:44,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:44,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:44,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:44,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 09:00:44,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:44,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:44,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:44,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:44,221 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:44,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:44,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:44,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:44,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:44,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:44,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:44,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:44,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:44,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:44,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:44,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:44,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:44,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:44,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:44,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:44,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:44,225 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_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer 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 -> Automizer 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 -> abc8c011037b18d2b04821c19a29c782ed95f149 [2019-10-22 09:00:44,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:44,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:44,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:44,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:44,271 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:44,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Gothenburg-2.c [2019-10-22 09:00:44,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/data/449e3d4ff/3cd9cbbdfb894a2eb44aaee3016e1e69/FLAGec923f142 [2019-10-22 09:00:44,712 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:44,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/sv-benchmarks/c/termination-crafted/Gothenburg-2.c [2019-10-22 09:00:44,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/data/449e3d4ff/3cd9cbbdfb894a2eb44aaee3016e1e69/FLAGec923f142 [2019-10-22 09:00:44,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/data/449e3d4ff/3cd9cbbdfb894a2eb44aaee3016e1e69 [2019-10-22 09:00:44,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:44,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:44,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:44,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:44,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:44,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:44" (1/1) ... [2019-10-22 09:00:44,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25eadbd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:44, skipping insertion in model container [2019-10-22 09:00:44,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:44" (1/1) ... [2019-10-22 09:00:44,757 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:44,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:44,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:44,943 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:45,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:45,026 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:45,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45 WrapperNode [2019-10-22 09:00:45,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:45,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:45,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:45,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:45,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:45,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:45,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:45,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:45,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... [2019-10-22 09:00:45,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:45,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:45,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:45,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:45,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2019-10-22 09:00:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:45,420 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:45,420 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 09:00:45,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:45 BoogieIcfgContainer [2019-10-22 09:00:45,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:45,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:45,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:45,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:45,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:44" (1/3) ... [2019-10-22 09:00:45,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52705a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:45, skipping insertion in model container [2019-10-22 09:00:45,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:45" (2/3) ... [2019-10-22 09:00:45,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52705a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:45, skipping insertion in model container [2019-10-22 09:00:45,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:45" (3/3) ... [2019-10-22 09:00:45,428 INFO L109 eAbstractionObserver]: Analyzing ICFG Gothenburg-2.c [2019-10-22 09:00:45,437 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:45,444 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 09:00:45,455 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 09:00:45,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:45,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:45,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:45,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:45,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:45,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:45,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:45,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:45,491 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-22 09:00:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 09:00:45,497 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:45,497 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 09:00:45,499 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:00:45,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:45,505 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-10-22 09:00:45,513 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:45,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851231401] [2019-10-22 09:00:45,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:45,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:45,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:45,631 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:45,632 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:45,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:45 BoogieIcfgContainer [2019-10-22 09:00:45,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:45,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:45,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:45,647 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:45,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:45" (3/4) ... [2019-10-22 09:00:45,650 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:45,684 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_58dce4af-b628-4efc-9954-1b3c7f381784/bin/uautomizer/witness.graphml [2019-10-22 09:00:45,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:45,686 INFO L168 Benchmark]: Toolchain (without parser) took 947.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:45,686 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:45,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.47 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 09:00:45,687 INFO L168 Benchmark]: Boogie Preprocessor took 15.18 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,688 INFO L168 Benchmark]: RCFGBuilder took 345.46 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,689 INFO L168 Benchmark]: TraceAbstraction took 224.60 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,689 INFO L168 Benchmark]: Witness Printer took 37.33 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 09:00:45,692 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.47 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 15.18 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 345.46 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 224.60 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.33 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int a, b, x, y; [L17] a = __VERIFIER_nondet_int() [L18] b = __VERIFIER_nondet_int() [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE a == b [L22] COND TRUE x >= 0 || y >= 0 [L23] x + a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 12 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...