./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/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 e334e85dd18553afecc96b27cf49a003304cbca8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:23:13,502 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:23:13,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:23:13,510 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:23:13,511 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:23:13,511 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:23:13,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:23:13,513 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:23:13,513 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:23:13,514 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:23:13,514 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:23:13,514 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:23:13,515 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:23:13,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:23:13,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:23:13,517 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:23:13,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:23:13,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:23:13,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:23:13,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:23:13,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:23:13,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:23:13,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:23:13,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:23:13,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:23:13,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:23:13,524 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:23:13,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:23:13,525 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:23:13,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:23:13,526 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:23:13,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:23:13,527 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:23:13,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:23:13,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:23:13,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:23:13,528 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 12:23:13,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:23:13,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:23:13,536 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:23:13,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:23:13,536 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:23:13,537 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:23:13,537 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:23:13,537 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:23:13,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:23:13,537 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:23:13,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:23:13,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:23:13,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:23:13,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:23:13,539 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:23:13,540 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:23:13,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:23:13,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:23:13,540 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:23:13,540 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_819b8a83-8ad1-4424-982e-ac3335dc137a/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 -> e334e85dd18553afecc96b27cf49a003304cbca8 [2018-11-18 12:23:13,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:23:13,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:23:13,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:23:13,575 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:23:13,576 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:23:13,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 12:23:13,617 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/data/208d41c7a/82c72fda5a754f61aefd36abc2e3bd33/FLAG4e1cb47fd [2018-11-18 12:23:14,008 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:23:14,009 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 12:23:14,012 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/data/208d41c7a/82c72fda5a754f61aefd36abc2e3bd33/FLAG4e1cb47fd [2018-11-18 12:23:14,023 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/data/208d41c7a/82c72fda5a754f61aefd36abc2e3bd33 [2018-11-18 12:23:14,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:23:14,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:23:14,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:23:14,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:23:14,029 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:23:14,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14, skipping insertion in model container [2018-11-18 12:23:14,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:23:14,047 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:23:14,151 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:23:14,153 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:23:14,162 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:23:14,170 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:23:14,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14 WrapperNode [2018-11-18 12:23:14,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:23:14,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:23:14,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:23:14,171 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:23:14,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:23:14,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:23:14,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:23:14,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:23:14,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... [2018-11-18 12:23:14,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:23:14,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:23:14,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:23:14,199 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:23:14,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/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 [2018-11-18 12:23:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:23:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:23:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:23:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:23:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:23:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:23:14,356 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:23:14,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:23:14 BoogieIcfgContainer [2018-11-18 12:23:14,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:23:14,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:23:14,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:23:14,359 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:23:14,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:23:14" (1/3) ... [2018-11-18 12:23:14,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b99eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:23:14, skipping insertion in model container [2018-11-18 12:23:14,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:23:14" (2/3) ... [2018-11-18 12:23:14,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b99eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:23:14, skipping insertion in model container [2018-11-18 12:23:14,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:23:14" (3/3) ... [2018-11-18 12:23:14,362 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 12:23:14,367 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:23:14,376 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 12:23:14,387 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 12:23:14,412 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:23:14,412 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:23:14,412 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:23:14,412 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:23:14,412 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:23:14,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:23:14,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:23:14,413 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:23:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 12:23:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 12:23:14,427 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:14,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:14,429 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:14,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,432 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-11-18 12:23:14,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:14,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:23:14,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:23:14,528 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:23:14,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:23:14,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:23:14,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:23:14,545 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-18 12:23:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:14,586 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-18 12:23:14,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:23:14,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 12:23:14,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:14,593 INFO L225 Difference]: With dead ends: 36 [2018-11-18 12:23:14,593 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 12:23:14,594 INFO L604 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 [2018-11-18 12:23:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 12:23:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-11-18 12:23:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 12:23:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-18 12:23:14,615 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 10 [2018-11-18 12:23:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:14,615 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-18 12:23:14,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:23:14,616 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 12:23:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:23:14,616 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:14,616 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:14,617 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:14,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,617 INFO L82 PathProgramCache]: Analyzing trace with hash -175989934, now seen corresponding path program 1 times [2018-11-18 12:23:14,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:14,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,619 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:23:14,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:23:14,646 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:23:14,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:23:14,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:23:14,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:23:14,648 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-18 12:23:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:14,664 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-18 12:23:14,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:23:14,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 12:23:14,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:14,665 INFO L225 Difference]: With dead ends: 21 [2018-11-18 12:23:14,665 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 12:23:14,666 INFO L604 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 [2018-11-18 12:23:14,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 12:23:14,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-18 12:23:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 12:23:14,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 12:23:14,669 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-11-18 12:23:14,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:14,669 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 12:23:14,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:23:14,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 12:23:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 12:23:14,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:14,670 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:14,670 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:14,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1160720602, now seen corresponding path program 1 times [2018-11-18 12:23:14,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:14,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:23:14,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:23:14,711 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:23:14,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:23:14,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:23:14,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:23:14,712 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-18 12:23:14,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:14,732 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-18 12:23:14,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:23:14,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-18 12:23:14,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:14,733 INFO L225 Difference]: With dead ends: 20 [2018-11-18 12:23:14,733 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 12:23:14,733 INFO L604 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 [2018-11-18 12:23:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 12:23:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 12:23:14,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 12:23:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 12:23:14,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2018-11-18 12:23:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:14,737 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 12:23:14,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:23:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 12:23:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 12:23:14,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:14,737 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:14,738 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:14,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1622600236, now seen corresponding path program 1 times [2018-11-18 12:23:14,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:14,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:23:14,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:23:14,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:23:14,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:23:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:23:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:23:14,763 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-18 12:23:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:14,771 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-18 12:23:14,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:23:14,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 12:23:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:14,772 INFO L225 Difference]: With dead ends: 21 [2018-11-18 12:23:14,772 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 12:23:14,772 INFO L604 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 [2018-11-18 12:23:14,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 12:23:14,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-18 12:23:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 12:23:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-18 12:23:14,775 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2018-11-18 12:23:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:14,775 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-18 12:23:14,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:23:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 12:23:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:23:14,776 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:14,776 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:14,776 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:14,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash 108357052, now seen corresponding path program 1 times [2018-11-18 12:23:14,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:14,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:14,778 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:23:14,799 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:23:14,800 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-18 12:23:14,801 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [20], [21], [22], [24], [26], [28], [40], [41], [42] [2018-11-18 12:23:14,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:23:14,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:23:14,915 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:23:14,916 INFO L272 AbstractInterpreter]: Visited 14 different actions 36 times. Merged at 7 different actions 19 times. Never widened. Performed 116 root evaluator evaluations with a maximum evaluation depth of 2. Performed 116 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-11-18 12:23:14,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:14,937 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:23:14,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:23:14,937 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/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 [2018-11-18 12:23:14,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:14,947 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:23:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:14,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:23:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:14,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:23:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:15,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:23:15,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-11-18 12:23:15,050 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:23:15,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:23:15,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:23:15,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:23:15,051 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-18 12:23:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:15,070 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-18 12:23:15,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:23:15,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 12:23:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:15,072 INFO L225 Difference]: With dead ends: 27 [2018-11-18 12:23:15,072 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 12:23:15,073 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:23:15,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 12:23:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-18 12:23:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 12:23:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-18 12:23:15,077 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2018-11-18 12:23:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:15,077 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-18 12:23:15,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:23:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-18 12:23:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:23:15,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:23:15,078 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:23:15,078 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:23:15,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:23:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1734377060, now seen corresponding path program 2 times [2018-11-18 12:23:15,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:23:15,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:15,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:23:15,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:23:15,080 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:23:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:23:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:23:15,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:23:15,125 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:23:15,125 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 12:23:15,125 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 12:23:15,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:23:15,125 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:23:15,139 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:23:15,140 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 12:23:15,148 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-11-18 12:23:15,148 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:23:15,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:23:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 12:23:15,168 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:23:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 12:23:15,195 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:23:15,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2018-11-18 12:23:15,195 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:23:15,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:23:15,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:23:15,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:23:15,195 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 7 states. [2018-11-18 12:23:15,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:23:15,266 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-18 12:23:15,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:23:15,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 12:23:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:23:15,266 INFO L225 Difference]: With dead ends: 38 [2018-11-18 12:23:15,266 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:23:15,267 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:23:15,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:23:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:23:15,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:23:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:23:15,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-18 12:23:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:23:15,268 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:23:15,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:23:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:23:15,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:23:15,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:23:15,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:23:15,299 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:23:15,299 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:23:15,299 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:23:15,299 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:23:15,299 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:23:15,299 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L421 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (and (<= main_~n~0 2147483647) (<= 0 main_~v2~0) (<= main_~m~0 2147483647) (<= main_~v1~0 2147483647)) [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-18 12:23:15,300 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 27) no Hoare annotation was computed. [2018-11-18 12:23:15,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:23:15 BoogieIcfgContainer [2018-11-18 12:23:15,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:23:15,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:23:15,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:23:15,308 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:23:15,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:23:14" (3/4) ... [2018-11-18 12:23:15,310 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:23:15,313 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:23:15,314 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:23:15,316 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:23:15,317 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:23:15,317 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:23:15,317 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:23:15,341 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_819b8a83-8ad1-4424-982e-ac3335dc137a/bin-2019/utaipan/witness.graphml [2018-11-18 12:23:15,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:23:15,342 INFO L168 Benchmark]: Toolchain (without parser) took 1316.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -54.2 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,343 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:23:15,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.58 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:23:15,344 INFO L168 Benchmark]: Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,344 INFO L168 Benchmark]: RCFGBuilder took 158.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,345 INFO L168 Benchmark]: TraceAbstraction took 949.94 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: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,345 INFO L168 Benchmark]: Witness Printer took 33.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:23:15,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 13.58 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 949.94 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: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. * Witness Printer took 33.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((n <= 2147483647 && 0 <= v2) && m <= 2147483647) && v1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 79 SDtfs, 48 SDslu, 86 SDs, 0 SdLazy, 61 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=5, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 17 HoareAnnotationTreeSize, 5 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 128 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 6879 SizeOfPredicates, 3 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 26/57 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...