./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ff697c57265298ce2261966fa58c440777fc865 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-1dbac8b [2018-11-10 12:49:23,146 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:49:23,147 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:49:23,156 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:49:23,156 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:49:23,157 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:49:23,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:49:23,159 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:49:23,160 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:49:23,161 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:49:23,162 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:49:23,162 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:49:23,163 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:49:23,164 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:49:23,165 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:49:23,165 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:49:23,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:49:23,168 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:49:23,169 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:49:23,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:49:23,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:49:23,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:49:23,174 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:49:23,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:49:23,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:49:23,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:49:23,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:49:23,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:49:23,177 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:49:23,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:49:23,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:49:23,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:49:23,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:49:23,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:49:23,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:49:23,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:49:23,181 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 12:49:23,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:49:23,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:49:23,193 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:49:23,193 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:49:23,193 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:49:23,193 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:49:23,193 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:49:23,193 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:49:23,194 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:49:23,194 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:49:23,195 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:49:23,195 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:49:23,195 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:49:23,195 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:49:23,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:49:23,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:49:23,197 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:49:23,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:49:23,198 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:49:23,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:49:23,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:49:23,198 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:49:23,198 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan 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 -> Taipan 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 -> 6ff697c57265298ce2261966fa58c440777fc865 [2018-11-10 12:49:23,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:49:23,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:49:23,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:49:23,235 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:49:23,235 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:49:23,236 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 12:49:23,283 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/data/a47b5a730/05c7f13cc1c84605827964a1191a920e/FLAG5a0164ee4 [2018-11-10 12:49:23,616 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:49:23,617 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 12:49:23,622 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/data/a47b5a730/05c7f13cc1c84605827964a1191a920e/FLAG5a0164ee4 [2018-11-10 12:49:23,630 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/data/a47b5a730/05c7f13cc1c84605827964a1191a920e [2018-11-10 12:49:23,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:49:23,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:49:23,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:49:23,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:49:23,636 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:49:23,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606eadf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23, skipping insertion in model container [2018-11-10 12:49:23,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:49:23,658 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:49:23,749 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:49:23,751 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:49:23,764 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:49:23,772 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:49:23,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23 WrapperNode [2018-11-10 12:49:23,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:49:23,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:49:23,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:49:23,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:49:23,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:49:23,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:49:23,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:49:23,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:49:23,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... [2018-11-10 12:49:23,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:49:23,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:49:23,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:49:23,804 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:49:23,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/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 [2018-11-10 12:49:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:49:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:49:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-10 12:49:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-10 12:49:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:49:23,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:49:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:49:23,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:49:24,100 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:49:24,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:49:24 BoogieIcfgContainer [2018-11-10 12:49:24,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:49:24,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:49:24,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:49:24,103 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:49:24,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:49:23" (1/3) ... [2018-11-10 12:49:24,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7644e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:49:24, skipping insertion in model container [2018-11-10 12:49:24,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:49:23" (2/3) ... [2018-11-10 12:49:24,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7644e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:49:24, skipping insertion in model container [2018-11-10 12:49:24,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:49:24" (3/3) ... [2018-11-10 12:49:24,106 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 12:49:24,113 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:49:24,119 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 12:49:24,131 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 12:49:24,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:49:24,158 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:49:24,158 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:49:24,158 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:49:24,158 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:49:24,158 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:49:24,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:49:24,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:49:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-10 12:49:24,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 12:49:24,175 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,176 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,177 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1533557337, now seen corresponding path program 1 times [2018-11-10 12:49:24,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,213 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:49:24,265 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:49:24,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:49:24,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,277 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2018-11-10 12:49:24,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,314 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2018-11-10 12:49:24,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:49:24,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-10 12:49:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,322 INFO L225 Difference]: With dead ends: 59 [2018-11-10 12:49:24,322 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 12:49:24,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 12:49:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-10 12:49:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 12:49:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2018-11-10 12:49:24,353 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 7 [2018-11-10 12:49:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,353 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2018-11-10 12:49:24,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:49:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-11-10 12:49:24,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 12:49:24,354 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,354 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,354 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,355 INFO L82 PathProgramCache]: Analyzing trace with hash -295637108, now seen corresponding path program 1 times [2018-11-10 12:49:24,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,356 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:49:24,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:49:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:49:24,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,374 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand 3 states. [2018-11-10 12:49:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,411 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2018-11-10 12:49:24,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:49:24,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 12:49:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,413 INFO L225 Difference]: With dead ends: 74 [2018-11-10 12:49:24,413 INFO L226 Difference]: Without dead ends: 72 [2018-11-10 12:49:24,414 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-10 12:49:24,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2018-11-10 12:49:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 12:49:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-11-10 12:49:24,421 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 8 [2018-11-10 12:49:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,421 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-11-10 12:49:24,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:49:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-11-10 12:49:24,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:49:24,422 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,422 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,423 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1626993653, now seen corresponding path program 1 times [2018-11-10 12:49:24,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:49:24,451 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:49:24,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:49:24,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,452 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 3 states. [2018-11-10 12:49:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,511 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2018-11-10 12:49:24,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:49:24,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-10 12:49:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,512 INFO L225 Difference]: With dead ends: 71 [2018-11-10 12:49:24,512 INFO L226 Difference]: Without dead ends: 70 [2018-11-10 12:49:24,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:49:24,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-10 12:49:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-11-10 12:49:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 12:49:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2018-11-10 12:49:24,520 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 19 [2018-11-10 12:49:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,521 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2018-11-10 12:49:24,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:49:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2018-11-10 12:49:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 12:49:24,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,522 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,523 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,523 INFO L82 PathProgramCache]: Analyzing trace with hash 923181581, now seen corresponding path program 1 times [2018-11-10 12:49:24,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:49:24,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:49:24,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:49:24,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:49:24,571 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand 4 states. [2018-11-10 12:49:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,625 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2018-11-10 12:49:24,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:49:24,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 12:49:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,627 INFO L225 Difference]: With dead ends: 81 [2018-11-10 12:49:24,627 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 12:49:24,627 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:49:24,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 12:49:24,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2018-11-10 12:49:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 12:49:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-11-10 12:49:24,634 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 20 [2018-11-10 12:49:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,634 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-11-10 12:49:24,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:49:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-11-10 12:49:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 12:49:24,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,635 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,635 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1102804163, now seen corresponding path program 1 times [2018-11-10 12:49:24,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:49:24,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:49:24,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:49:24,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:49:24,668 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 4 states. [2018-11-10 12:49:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,707 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2018-11-10 12:49:24,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:49:24,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 12:49:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,708 INFO L225 Difference]: With dead ends: 66 [2018-11-10 12:49:24,708 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 12:49:24,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:49:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 12:49:24,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 12:49:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 12:49:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-11-10 12:49:24,715 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 20 [2018-11-10 12:49:24,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,715 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-11-10 12:49:24,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:49:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-11-10 12:49:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:49:24,716 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,717 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,717 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1445955111, now seen corresponding path program 1 times [2018-11-10 12:49:24,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,718 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:49:24,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:49:24,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:49:24,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:49:24,767 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:49:24,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:49:24,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:49:24,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:49:24,767 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 4 states. [2018-11-10 12:49:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:49:24,816 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-11-10 12:49:24,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:49:24,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-10 12:49:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:49:24,817 INFO L225 Difference]: With dead ends: 72 [2018-11-10 12:49:24,817 INFO L226 Difference]: Without dead ends: 71 [2018-11-10 12:49:24,818 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:49:24,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-10 12:49:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2018-11-10 12:49:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-10 12:49:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2018-11-10 12:49:24,822 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 21 [2018-11-10 12:49:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:49:24,822 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2018-11-10 12:49:24,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:49:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2018-11-10 12:49:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 12:49:24,824 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:49:24,824 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:49:24,824 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:49:24,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:49:24,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1827018525, now seen corresponding path program 1 times [2018-11-10 12:49:24,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:49:24,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:49:24,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:49:24,825 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:49:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:49:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:49:24,848 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:49:24,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:49:24 BoogieIcfgContainer [2018-11-10 12:49:24,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:49:24,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:49:24,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:49:24,872 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:49:24,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:49:24" (3/4) ... [2018-11-10 12:49:24,874 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:49:24,902 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e4a0da22-a0cf-4410-a235-498e998fdf72/bin-2019/utaipan/witness.graphml [2018-11-10 12:49:24,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:49:24,903 INFO L168 Benchmark]: Toolchain (without parser) took 1270.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,904 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:49:24,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.33 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 943.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,905 INFO L168 Benchmark]: Boogie Preprocessor took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,905 INFO L168 Benchmark]: RCFGBuilder took 296.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,905 INFO L168 Benchmark]: TraceAbstraction took 770.44 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:49:24,906 INFO L168 Benchmark]: Witness Printer took 30.39 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. [2018-11-10 12:49:24,908 INFO L336 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.33 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 943.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 770.44 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: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. * Witness Printer took 30.39 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 VAL [d=0, x=2147483647] [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 VAL [d=-1, x=2147483647] [L80] COND TRUE x > 0 VAL [d=-1, x=2147483647] [L81] x - d VAL [d=-1, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 6 error locations. UNSAFE Result, 0.7s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 347 SDtfs, 171 SDslu, 342 SDs, 0 SdLazy, 106 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 5025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...