./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:44:31,579 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:44:31,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:44:31,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:44:31,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:44:31,590 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:44:31,592 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:44:31,593 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:44:31,594 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:44:31,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:44:31,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:44:31,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:44:31,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:44:31,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:44:31,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:44:31,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:44:31,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:44:31,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:44:31,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:44:31,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:44:31,605 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:44:31,606 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:44:31,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:44:31,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:44:31,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:44:31,609 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:44:31,610 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:44:31,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:44:31,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:44:31,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:44:31,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:44:31,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:44:31,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:44:31,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:44:31,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:44:31,616 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:44:31,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-10-27 05:44:31,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:44:31,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:44:31,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:44:31,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:44:31,629 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:44:31,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:44:31,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:44:31,630 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:44:31,630 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:44:31,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:44:31,630 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:44:31,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:44:31,631 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:44:31,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:44:31,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:44:31,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:44:31,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:44:31,634 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:44:31,634 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:44:31,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:44:31,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:44:31,634 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:44:31,634 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:44:31,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:44:31,635 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:44:31,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:44:31,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:44:31,635 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:44:31,635 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_bfbc1e59-00f3-4939-b57b-5d7d29f53904/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2018-10-27 05:44:31,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:44:31,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:44:31,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:44:31,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:44:31,681 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:44:31,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-10-27 05:44:31,734 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/data/f1d703be9/eda90e560bfd42309e9813d936c70189/FLAGa674d53ed [2018-10-27 05:44:32,104 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:44:32,104 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-10-27 05:44:32,111 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/data/f1d703be9/eda90e560bfd42309e9813d936c70189/FLAGa674d53ed [2018-10-27 05:44:32,122 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/data/f1d703be9/eda90e560bfd42309e9813d936c70189 [2018-10-27 05:44:32,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:44:32,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:44:32,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:44:32,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:44:32,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:44:32,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7bd481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32, skipping insertion in model container [2018-10-27 05:44:32,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:44:32,161 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:44:32,325 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:44:32,329 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:44:32,345 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:44:32,359 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:44:32,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32 WrapperNode [2018-10-27 05:44:32,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:44:32,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:44:32,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:44:32,361 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:44:32,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:44:32,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:44:32,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:44:32,382 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:44:32,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... [2018-10-27 05:44:32,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:44:32,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:44:32,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:44:32,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:44:32,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/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 [2018-10-27 05:44:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:44:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:44:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:44:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:44:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:44:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:44:32,913 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:44:32,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:32 BoogieIcfgContainer [2018-10-27 05:44:32,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:44:32,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:44:32,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:44:32,918 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:44:32,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:44:32" (1/3) ... [2018-10-27 05:44:32,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a963ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:44:32, skipping insertion in model container [2018-10-27 05:44:32,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:32" (2/3) ... [2018-10-27 05:44:32,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a963ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:44:32, skipping insertion in model container [2018-10-27 05:44:32,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:32" (3/3) ... [2018-10-27 05:44:32,922 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-10-27 05:44:32,931 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:44:32,938 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:44:32,952 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:44:32,989 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:44:32,989 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:44:32,990 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:44:32,990 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:44:32,990 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:44:32,990 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:44:32,990 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:44:32,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:44:33,018 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-27 05:44:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:44:33,040 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,041 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,043 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1432253197, now seen corresponding path program 1 times [2018-10-27 05:44:33,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,110 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:33,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,183 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 05:44:33,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 05:44:33,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:44:33,204 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-10-27 05:44:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,224 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-10-27 05:44:33,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 05:44:33,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-10-27 05:44:33,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,237 INFO L225 Difference]: With dead ends: 39 [2018-10-27 05:44:33,237 INFO L226 Difference]: Without dead ends: 17 [2018-10-27 05:44:33,240 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:44:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-27 05:44:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-27 05:44:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:44:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-10-27 05:44:33,272 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-10-27 05:44:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,272 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-10-27 05:44:33,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 05:44:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-10-27 05:44:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:44:33,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,273 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,274 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187957, now seen corresponding path program 1 times [2018-10-27 05:44:33,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,277 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:33,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,321 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:44:33,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:44:33,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,323 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-10-27 05:44:33,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,405 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-10-27 05:44:33,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:44:33,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:44:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,409 INFO L225 Difference]: With dead ends: 17 [2018-10-27 05:44:33,409 INFO L226 Difference]: Without dead ends: 16 [2018-10-27 05:44:33,410 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-27 05:44:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-27 05:44:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-27 05:44:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-10-27 05:44:33,413 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-10-27 05:44:33,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,413 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-10-27 05:44:33,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:44:33,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-10-27 05:44:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:44:33,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,414 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,415 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187902, now seen corresponding path program 1 times [2018-10-27 05:44:33,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,417 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:33,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,457 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:44:33,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:44:33,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,457 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-10-27 05:44:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,515 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-10-27 05:44:33,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:44:33,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-10-27 05:44:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,517 INFO L225 Difference]: With dead ends: 26 [2018-10-27 05:44:33,517 INFO L226 Difference]: Without dead ends: 25 [2018-10-27 05:44:33,518 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-27 05:44:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2018-10-27 05:44:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-27 05:44:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-27 05:44:33,522 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-10-27 05:44:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,523 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-27 05:44:33,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:44:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-27 05:44:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:44:33,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,524 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,524 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2006153642, now seen corresponding path program 1 times [2018-10-27 05:44:33,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,526 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:33,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,563 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:44:33,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:44:33,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,564 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-10-27 05:44:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,610 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-10-27 05:44:33,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:44:33,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:44:33,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,612 INFO L225 Difference]: With dead ends: 19 [2018-10-27 05:44:33,612 INFO L226 Difference]: Without dead ends: 18 [2018-10-27 05:44:33,612 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-27 05:44:33,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-27 05:44:33,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 05:44:33,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-10-27 05:44:33,615 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2018-10-27 05:44:33,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,617 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-10-27 05:44:33,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:44:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-10-27 05:44:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:44:33,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,618 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,618 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2006151944, now seen corresponding path program 1 times [2018-10-27 05:44:33,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,620 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:33,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,649 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:44:33,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:44:33,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,650 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-10-27 05:44:33,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,676 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-10-27 05:44:33,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:44:33,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-27 05:44:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,677 INFO L225 Difference]: With dead ends: 20 [2018-10-27 05:44:33,677 INFO L226 Difference]: Without dead ends: 19 [2018-10-27 05:44:33,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-27 05:44:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-10-27 05:44:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:44:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-27 05:44:33,681 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-10-27 05:44:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,681 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-27 05:44:33,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:44:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-27 05:44:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:44:33,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:33,682 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:33,683 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:33,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:33,683 INFO L82 PathProgramCache]: Analyzing trace with hash -802592006, now seen corresponding path program 1 times [2018-10-27 05:44:33,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:44:33,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:33,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:33,685 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:44:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:44:33,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:33,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:44:33,717 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:44:33,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:44:33,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:44:33,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,718 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-10-27 05:44:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:33,740 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-10-27 05:44:33,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:44:33,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-27 05:44:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:33,742 INFO L225 Difference]: With dead ends: 21 [2018-10-27 05:44:33,742 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:44:33,742 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:44:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:44:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:44:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:44:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:44:33,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-27 05:44:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:33,744 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:44:33,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:44:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:44:33,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:44:33,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:44:33,868 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:44:33,868 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:44:33,869 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 21) no Hoare annotation was computed. [2018-10-27 05:44:33,869 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-10-27 05:44:33,870 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: (and (<= 0 main_~j~0) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 4)) [2018-10-27 05:44:33,870 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2018-10-27 05:44:33,870 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (<= 0 (+ main_~i~0 2147483648)) [2018-10-27 05:44:33,870 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 23) no Hoare annotation was computed. [2018-10-27 05:44:33,870 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-10-27 05:44:33,870 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-10-27 05:44:33,870 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-10-27 05:44:33,871 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-27 05:44:33,871 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-27 05:44:33,871 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-10-27 05:44:33,871 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-27 05:44:33,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:44:33 BoogieIcfgContainer [2018-10-27 05:44:33,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:44:33,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:44:33,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:44:33,886 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:44:33,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:32" (3/4) ... [2018-10-27 05:44:33,891 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:44:33,897 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:44:33,897 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:44:33,901 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-27 05:44:33,901 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:44:33,901 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:44:33,939 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bfbc1e59-00f3-4939-b57b-5d7d29f53904/bin-2019/utaipan/witness.graphml [2018-10-27 05:44:33,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:44:33,939 INFO L168 Benchmark]: Toolchain (without parser) took 1814.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:33,941 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:44:33,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:33,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:44:33,942 INFO L168 Benchmark]: Boogie Preprocessor took 26.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:44:33,942 INFO L168 Benchmark]: RCFGBuilder took 504.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:33,943 INFO L168 Benchmark]: TraceAbstraction took 971.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:33,943 INFO L168 Benchmark]: Witness Printer took 53.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:33,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.0 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 21.24 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 504.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 971.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 53.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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: 20]: 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= j && 0 <= i + 2147483648) && i <= 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 30 SDslu, 31 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 21 HoareAnnotationTreeSize, 6 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...