./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/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 8453faee1973ffed1ccb53c7dc0c8b73cade6461 ........................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:45:22,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:45:22,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:45:22,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:45:22,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:45:22,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:45:22,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:45:22,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:45:23,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:45:23,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:45:23,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:45:23,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:45:23,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:45:23,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:45:23,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:45:23,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:45:23,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:45:23,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:45:23,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:45:23,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:45:23,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:45:23,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:45:23,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:45:23,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:45:23,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:45:23,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:45:23,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:45:23,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:45:23,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:45:23,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:45:23,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:45:23,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:45:23,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:45:23,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:45:23,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:45:23,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:45:23,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:45:23,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:45:23,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:45:23,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:45:23,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:45:23,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-25 08:45:23,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:45:23,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:45:23,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:45:23,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:45:23,042 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:45:23,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:45:23,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:45:23,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:45:23,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:45:23,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:45:23,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:45:23,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:45:23,044 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-25 08:45:23,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:45:23,045 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:45:23,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:45:23,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:45:23,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:45:23,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:45:23,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:45:23,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:45:23,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:45:23,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:45:23,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:45:23,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:45:23,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:45:23,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:45:23,047 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_6401016a-ecd8-4611-8543-b03097d0ad72/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 -> 8453faee1973ffed1ccb53c7dc0c8b73cade6461 [2019-11-25 08:45:23,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:45:23,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:45:23,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:45:23,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:45:23,203 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:45:23,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore-1.c [2019-11-25 08:45:23,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/data/b734c3b10/b4d611307a83414793a7cc6554000b01/FLAGca3d12279 [2019-11-25 08:45:23,654 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:45:23,655 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/sv-benchmarks/c/termination-crafted/Bangalore-1.c [2019-11-25 08:45:23,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/data/b734c3b10/b4d611307a83414793a7cc6554000b01/FLAGca3d12279 [2019-11-25 08:45:23,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/data/b734c3b10/b4d611307a83414793a7cc6554000b01 [2019-11-25 08:45:23,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:45:23,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:45:23,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:23,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:45:23,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:45:23,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d99efa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23, skipping insertion in model container [2019-11-25 08:45:23,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:45:23,710 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:45:23,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:23,864 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:45:23,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:45:23,945 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:45:23,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23 WrapperNode [2019-11-25 08:45:23,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:45:23,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:23,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:45:23,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:45:23,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:45:23,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:45:23,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:45:23,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:45:23,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... [2019-11-25 08:45:23,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:45:23,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:45:23,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:45:23,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:45:23,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/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 [2019-11-25 08:45:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:45:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:45:24,193 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:45:24,193 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:45:24,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:24 BoogieIcfgContainer [2019-11-25 08:45:24,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:45:24,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:45:24,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:45:24,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:45:24,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:45:23" (1/3) ... [2019-11-25 08:45:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c5f008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:45:24, skipping insertion in model container [2019-11-25 08:45:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:45:23" (2/3) ... [2019-11-25 08:45:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c5f008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:45:24, skipping insertion in model container [2019-11-25 08:45:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:24" (3/3) ... [2019-11-25 08:45:24,202 INFO L109 eAbstractionObserver]: Analyzing ICFG Bangalore-1.c [2019-11-25 08:45:24,210 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:45:24,216 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:45:24,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:45:24,246 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:45:24,246 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:45:24,247 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:45:24,247 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:45:24,247 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:45:24,247 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:45:24,247 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:45:24,248 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:45:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-25 08:45:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:45:24,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:45:24,265 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:45:24,266 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:45:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:45:24,271 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-11-25 08:45:24,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:45:24,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678613999] [2019-11-25 08:45:24,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:45:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:45:24,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:45:24,402 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:45:24,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:45:24 BoogieIcfgContainer [2019-11-25 08:45:24,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:45:24,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:45:24,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:45:24,419 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:45:24,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:45:24" (3/4) ... [2019-11-25 08:45:24,422 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:45:24,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6401016a-ecd8-4611-8543-b03097d0ad72/bin/uautomizer/witness.graphml [2019-11-25 08:45:24,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:45:24,457 INFO L168 Benchmark]: Toolchain (without parser) took 778.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -162.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:24,457 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:45:24,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:24,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.00 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. [2019-11-25 08:45:24,459 INFO L168 Benchmark]: Boogie Preprocessor took 15.56 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. [2019-11-25 08:45:24,460 INFO L168 Benchmark]: RCFGBuilder took 201.24 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. [2019-11-25 08:45:24,460 INFO L168 Benchmark]: TraceAbstraction took 222.50 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:45:24,461 INFO L168 Benchmark]: Witness Printer took 36.52 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. [2019-11-25 08:45:24,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.00 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 15.56 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 201.24 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. * TraceAbstraction took 222.50 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.52 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x; [L14] int y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE y < 1 [L18] COND TRUE x >= 0 [L19] x - y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 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=11occurred 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...