./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/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_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/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 0.1.23-635dfa2 [2018-12-09 07:41:37,241 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 07:41:37,242 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 07:41:37,248 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 07:41:37,248 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 07:41:37,249 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 07:41:37,250 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 07:41:37,250 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 07:41:37,251 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 07:41:37,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 07:41:37,252 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 07:41:37,252 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 07:41:37,253 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 07:41:37,253 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 07:41:37,254 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 07:41:37,254 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 07:41:37,255 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 07:41:37,256 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 07:41:37,257 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 07:41:37,258 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 07:41:37,258 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 07:41:37,259 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 07:41:37,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 07:41:37,260 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 07:41:37,260 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 07:41:37,261 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 07:41:37,261 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 07:41:37,262 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 07:41:37,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 07:41:37,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 07:41:37,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 07:41:37,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 07:41:37,263 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 07:41:37,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 07:41:37,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 07:41:37,264 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 07:41:37,265 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 07:41:37,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 07:41:37,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 07:41:37,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 07:41:37,273 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 07:41:37,273 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 07:41:37,274 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 07:41:37,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 07:41:37,274 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 07:41:37,274 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 07:41:37,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 07:41:37,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 07:41:37,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 07:41:37,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 07:41:37,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 07:41:37,276 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 07:41:37,276 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_49e13780-26af-44c2-8452-15c3fc19afb4/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 [2018-12-09 07:41:37,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 07:41:37,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 07:41:37,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 07:41:37,303 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 07:41:37,303 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 07:41:37,304 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-09 07:41:37,338 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/data/a33932010/8337c6dc583e4aa6b1e87fa59b292b4c/FLAGca5d1cfea [2018-12-09 07:41:37,615 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 07:41:37,616 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-09 07:41:37,619 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/data/a33932010/8337c6dc583e4aa6b1e87fa59b292b4c/FLAGca5d1cfea [2018-12-09 07:41:37,627 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/data/a33932010/8337c6dc583e4aa6b1e87fa59b292b4c [2018-12-09 07:41:37,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 07:41:37,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 07:41:37,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 07:41:37,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 07:41:37,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 07:41:37,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59facd15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37, skipping insertion in model container [2018-12-09 07:41:37,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 07:41:37,648 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 07:41:37,732 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:41:37,735 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 07:41:37,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:41:37,753 INFO L195 MainTranslator]: Completed translation [2018-12-09 07:41:37,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37 WrapperNode [2018-12-09 07:41:37,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 07:41:37,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 07:41:37,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 07:41:37,754 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 07:41:37,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 07:41:37,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 07:41:37,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 07:41:37,765 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 07:41:37,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... [2018-12-09 07:41:37,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 07:41:37,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 07:41:37,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 07:41:37,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 07:41:37,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/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 [2018-12-09 07:41:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 07:41:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 07:41:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-09 07:41:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-09 07:41:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 07:41:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 07:41:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 07:41:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 07:41:37,964 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 07:41:37,964 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 07:41:37,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:37 BoogieIcfgContainer [2018-12-09 07:41:37,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 07:41:37,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 07:41:37,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 07:41:37,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 07:41:37,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:41:37" (1/3) ... [2018-12-09 07:41:37,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d95dc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:41:37, skipping insertion in model container [2018-12-09 07:41:37,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:37" (2/3) ... [2018-12-09 07:41:37,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d95dc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:41:37, skipping insertion in model container [2018-12-09 07:41:37,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:37" (3/3) ... [2018-12-09 07:41:37,969 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-09 07:41:37,974 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 07:41:37,979 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-09 07:41:37,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-09 07:41:38,005 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 07:41:38,006 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 07:41:38,006 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 07:41:38,006 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 07:41:38,006 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 07:41:38,006 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 07:41:38,006 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 07:41:38,006 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 07:41:38,016 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-12-09 07:41:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 07:41:38,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,020 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1872952966, now seen corresponding path program 1 times [2018-12-09 07:41:38,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:41:38,102 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 07:41:38,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 07:41:38,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 07:41:38,114 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-12-09 07:41:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,141 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2018-12-09 07:41:38,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 07:41:38,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 07:41:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,148 INFO L225 Difference]: With dead ends: 58 [2018-12-09 07:41:38,148 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 07:41:38,150 INFO L631 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 [2018-12-09 07:41:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 07:41:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 07:41:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 07:41:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2018-12-09 07:41:38,175 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 7 [2018-12-09 07:41:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,175 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2018-12-09 07:41:38,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 07:41:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2018-12-09 07:41:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 07:41:38,175 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,175 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,176 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2068000115, now seen corresponding path program 1 times [2018-12-09 07:41:38,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,177 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:41:38,199 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 07:41:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 07:41:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 07:41:38,201 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand 3 states. [2018-12-09 07:41:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,229 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-12-09 07:41:38,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 07:41:38,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 07:41:38,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,231 INFO L225 Difference]: With dead ends: 72 [2018-12-09 07:41:38,231 INFO L226 Difference]: Without dead ends: 70 [2018-12-09 07:41:38,232 INFO L631 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 [2018-12-09 07:41:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-09 07:41:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2018-12-09 07:41:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 07:41:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-12-09 07:41:38,241 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 8 [2018-12-09 07:41:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,241 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-12-09 07:41:38,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 07:41:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-12-09 07:41:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 07:41:38,242 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,242 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,243 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1576559192, now seen corresponding path program 1 times [2018-12-09 07:41:38,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,244 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:41:38,263 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 07:41:38,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 07:41:38,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 07:41:38,264 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 3 states. [2018-12-09 07:41:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,281 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions. [2018-12-09 07:41:38,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 07:41:38,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-09 07:41:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,282 INFO L225 Difference]: With dead ends: 69 [2018-12-09 07:41:38,282 INFO L226 Difference]: Without dead ends: 68 [2018-12-09 07:41:38,282 INFO L631 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 [2018-12-09 07:41:38,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-09 07:41:38,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-12-09 07:41:38,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-09 07:41:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2018-12-09 07:41:38,288 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 18 [2018-12-09 07:41:38,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,288 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2018-12-09 07:41:38,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 07:41:38,288 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2018-12-09 07:41:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 07:41:38,289 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,289 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,289 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1628694841, now seen corresponding path program 1 times [2018-12-09 07:41:38,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,290 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 07:41:38,316 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 07:41:38,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 07:41:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 07:41:38,316 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand 4 states. [2018-12-09 07:41:38,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,353 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2018-12-09 07:41:38,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 07:41:38,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-12-09 07:41:38,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,354 INFO L225 Difference]: With dead ends: 67 [2018-12-09 07:41:38,354 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 07:41:38,354 INFO L631 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 [2018-12-09 07:41:38,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 07:41:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-09 07:41:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-09 07:41:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-12-09 07:41:38,359 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 19 [2018-12-09 07:41:38,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,360 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-12-09 07:41:38,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 07:41:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-12-09 07:41:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 07:41:38,360 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,361 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,361 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,361 INFO L82 PathProgramCache]: Analyzing trace with hash 975768462, now seen corresponding path program 1 times [2018-12-09 07:41:38,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,362 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 07:41:38,384 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 07:41:38,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 07:41:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 07:41:38,385 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 4 states. [2018-12-09 07:41:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,407 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2018-12-09 07:41:38,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 07:41:38,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-12-09 07:41:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,408 INFO L225 Difference]: With dead ends: 74 [2018-12-09 07:41:38,408 INFO L226 Difference]: Without dead ends: 73 [2018-12-09 07:41:38,408 INFO L631 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 [2018-12-09 07:41:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-09 07:41:38,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2018-12-09 07:41:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-09 07:41:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2018-12-09 07:41:38,412 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 20 [2018-12-09 07:41:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,412 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2018-12-09 07:41:38,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 07:41:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2018-12-09 07:41:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 07:41:38,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,413 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,414 INFO L82 PathProgramCache]: Analyzing trace with hash 975774644, now seen corresponding path program 1 times [2018-12-09 07:41:38,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,414 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:41:38,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 07:41:38,433 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 07:41:38,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 07:41:38,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 07:41:38,434 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand 4 states. [2018-12-09 07:41:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,461 INFO L93 Difference]: Finished difference Result 69 states and 94 transitions. [2018-12-09 07:41:38,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 07:41:38,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-12-09 07:41:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,463 INFO L225 Difference]: With dead ends: 69 [2018-12-09 07:41:38,463 INFO L226 Difference]: Without dead ends: 68 [2018-12-09 07:41:38,463 INFO L631 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 [2018-12-09 07:41:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-09 07:41:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-12-09 07:41:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 07:41:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-12-09 07:41:38,470 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 20 [2018-12-09 07:41:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,470 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-12-09 07:41:38,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 07:41:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-12-09 07:41:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 07:41:38,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,471 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 07:41:38,472 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1807650971, now seen corresponding path program 1 times [2018-12-09 07:41:38,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:41:38,500 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 07:41:38,501 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-09 07:41:38,502 INFO L205 CegarAbsIntRunner]: [0], [46], [55], [57], [64], [66], [73], [75], [82], [84], [91], [93], [102], [111], [112], [113], [115], [121], [122], [123] [2018-12-09 07:41:38,529 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 07:41:38,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 07:41:38,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 07:41:38,598 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Performed 54 root evaluator evaluations with a maximum evaluation depth of 3. Performed 54 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-12-09 07:41:38,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,604 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 07:41:38,604 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 07:41:38,604 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 07:41:38,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,610 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 07:41:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:41:38,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:41:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 07:41:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 07:41:38,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 07:41:38,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2018-12-09 07:41:38,689 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:41:38,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 07:41:38,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 07:41:38,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-09 07:41:38,689 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 4 states. [2018-12-09 07:41:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:41:38,709 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-12-09 07:41:38,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 07:41:38,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-12-09 07:41:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:41:38,710 INFO L225 Difference]: With dead ends: 72 [2018-12-09 07:41:38,710 INFO L226 Difference]: Without dead ends: 65 [2018-12-09 07:41:38,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-09 07:41:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-09 07:41:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-12-09 07:41:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 07:41:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2018-12-09 07:41:38,717 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 21 [2018-12-09 07:41:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:41:38,717 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2018-12-09 07:41:38,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 07:41:38,717 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2018-12-09 07:41:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 07:41:38,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:41:38,718 INFO L402 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] [2018-12-09 07:41:38,718 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 07:41:38,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:41:38,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1410625968, now seen corresponding path program 1 times [2018-12-09 07:41:38,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:41:38,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:41:38,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:41:38,720 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:41:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:41:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:41:38,740 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 07:41:38,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:41:38 BoogieIcfgContainer [2018-12-09 07:41:38,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 07:41:38,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 07:41:38,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 07:41:38,758 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 07:41:38,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:37" (3/4) ... [2018-12-09 07:41:38,760 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 07:41:38,786 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49e13780-26af-44c2-8452-15c3fc19afb4/bin-2019/utaipan/witness.graphml [2018-12-09 07:41:38,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 07:41:38,787 INFO L168 Benchmark]: Toolchain (without parser) took 1158.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 953.3 MB in the beginning and 982.8 MB in the end (delta: -29.5 MB). Peak memory consumption was 103.2 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,788 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:41:38,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:41:38,789 INFO L168 Benchmark]: Boogie Preprocessor took 13.55 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,789 INFO L168 Benchmark]: RCFGBuilder took 186.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,789 INFO L168 Benchmark]: TraceAbstraction took 792.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 118.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,790 INFO L168 Benchmark]: Witness Printer took 28.37 ms. Allocated memory is still 1.2 GB. Free memory was 986.3 MB in the beginning and 982.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 07:41:38,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.55 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 792.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 118.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. * Witness Printer took 28.37 ms. Allocated memory is still 1.2 GB. Free memory was 986.3 MB in the beginning and 982.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. 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, 53 locations, 6 error locations. UNSAFE Result, 0.7s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 400 SDtfs, 178 SDslu, 404 SDs, 0 SdLazy, 131 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 10424 SizeOfPredicates, 1 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...