./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 14:26:59,612 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 14:26:59,613 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 14:26:59,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 14:26:59,621 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 14:26:59,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 14:26:59,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 14:26:59,624 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 14:26:59,625 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 14:26:59,625 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 14:26:59,626 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 14:26:59,626 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 14:26:59,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 14:26:59,627 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 14:26:59,628 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 14:26:59,629 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 14:26:59,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 14:26:59,630 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 14:26:59,632 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 14:26:59,633 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 14:26:59,634 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 14:26:59,634 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 14:26:59,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 14:26:59,635 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 14:26:59,635 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 14:26:59,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 14:26:59,637 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 14:26:59,637 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 14:26:59,637 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 14:26:59,638 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 14:26:59,638 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 14:26:59,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 14:26:59,639 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 14:26:59,639 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 14:26:59,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 14:26:59,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 14:26:59,640 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-01 14:26:59,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 14:26:59,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 14:26:59,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 14:26:59,647 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 14:26:59,648 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 14:26:59,648 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 14:26:59,648 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 14:26:59,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 14:26:59,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 14:26:59,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 14:26:59,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 14:26:59,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 14:26:59,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-12-01 14:26:59,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 14:26:59,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 14:26:59,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 14:26:59,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 14:26:59,682 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 14:26:59,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-01 14:26:59,725 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/data/636b9c660/6be49bc5e2b64b4784f1dce5d4cefede/FLAGd0763ef62 [2018-12-01 14:27:00,161 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 14:27:00,161 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-01 14:27:00,165 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/data/636b9c660/6be49bc5e2b64b4784f1dce5d4cefede/FLAGd0763ef62 [2018-12-01 14:27:00,173 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/data/636b9c660/6be49bc5e2b64b4784f1dce5d4cefede [2018-12-01 14:27:00,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 14:27:00,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 14:27:00,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 14:27:00,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 14:27:00,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 14:27:00,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00, skipping insertion in model container [2018-12-01 14:27:00,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 14:27:00,193 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 14:27:00,276 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:27:00,278 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 14:27:00,287 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 14:27:00,295 INFO L195 MainTranslator]: Completed translation [2018-12-01 14:27:00,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00 WrapperNode [2018-12-01 14:27:00,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 14:27:00,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 14:27:00,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 14:27:00,296 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 14:27:00,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 14:27:00,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 14:27:00,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 14:27:00,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 14:27:00,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... [2018-12-01 14:27:00,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 14:27:00,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 14:27:00,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 14:27:00,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 14:27:00,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 14:27:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 14:27:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 14:27:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 14:27:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 14:27:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 14:27:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 14:27:00,490 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 14:27:00,491 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 14:27:00,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:27:00 BoogieIcfgContainer [2018-12-01 14:27:00,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 14:27:00,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 14:27:00,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 14:27:00,493 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 14:27:00,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:27:00" (1/3) ... [2018-12-01 14:27:00,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7555696c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:27:00, skipping insertion in model container [2018-12-01 14:27:00,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:27:00" (2/3) ... [2018-12-01 14:27:00,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7555696c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:27:00, skipping insertion in model container [2018-12-01 14:27:00,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:27:00" (3/3) ... [2018-12-01 14:27:00,495 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-01 14:27:00,501 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 14:27:00,505 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-01 14:27:00,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-01 14:27:00,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 14:27:00,532 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 14:27:00,532 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 14:27:00,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 14:27:00,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 14:27:00,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 14:27:00,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 14:27:00,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 14:27:00,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 14:27:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-01 14:27:00,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 14:27:00,545 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,546 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,550 INFO L82 PathProgramCache]: Analyzing trace with hash -352043838, now seen corresponding path program 1 times [2018-12-01 14:27:00,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,646 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-12-01 14:27:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,665 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-12-01 14:27:00,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-01 14:27:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,672 INFO L225 Difference]: With dead ends: 30 [2018-12-01 14:27:00,673 INFO L226 Difference]: Without dead ends: 19 [2018-12-01 14:27:00,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-01 14:27:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-01 14:27:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-01 14:27:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-12-01 14:27:00,695 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2018-12-01 14:27:00,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,695 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-12-01 14:27:00,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,695 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-01 14:27:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 14:27:00,696 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,696 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,696 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1971542960, now seen corresponding path program 1 times [2018-12-01 14:27:00,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,711 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-12-01 14:27:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,728 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-12-01 14:27:00,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-01 14:27:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,729 INFO L225 Difference]: With dead ends: 20 [2018-12-01 14:27:00,729 INFO L226 Difference]: Without dead ends: 19 [2018-12-01 14:27:00,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-01 14:27:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-12-01 14:27:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-01 14:27:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-01 14:27:00,732 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-12-01 14:27:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,732 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-01 14:27:00,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-01 14:27:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 14:27:00,733 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,733 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,733 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1971548950, now seen corresponding path program 1 times [2018-12-01 14:27:00,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,748 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-12-01 14:27:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,754 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-12-01 14:27:00,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-01 14:27:00,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,755 INFO L225 Difference]: With dead ends: 18 [2018-12-01 14:27:00,755 INFO L226 Difference]: Without dead ends: 17 [2018-12-01 14:27:00,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-01 14:27:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-01 14:27:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-01 14:27:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-12-01 14:27:00,757 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2018-12-01 14:27:00,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,757 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-12-01 14:27:00,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-01 14:27:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 14:27:00,758 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,758 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,758 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1971549142, now seen corresponding path program 1 times [2018-12-01 14:27:00,758 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,771 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-12-01 14:27:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,777 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-12-01 14:27:00,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-01 14:27:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,778 INFO L225 Difference]: With dead ends: 17 [2018-12-01 14:27:00,778 INFO L226 Difference]: Without dead ends: 16 [2018-12-01 14:27:00,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-01 14:27:00,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-01 14:27:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-01 14:27:00,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-01 14:27:00,780 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-12-01 14:27:00,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,780 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-01 14:27:00,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-01 14:27:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 14:27:00,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,781 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,781 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,781 INFO L82 PathProgramCache]: Analyzing trace with hash 988475365, now seen corresponding path program 1 times [2018-12-01 14:27:00,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,795 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 3 states. [2018-12-01 14:27:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,801 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-12-01 14:27:00,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-01 14:27:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,802 INFO L225 Difference]: With dead ends: 17 [2018-12-01 14:27:00,802 INFO L226 Difference]: Without dead ends: 16 [2018-12-01 14:27:00,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-01 14:27:00,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-12-01 14:27:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-01 14:27:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-12-01 14:27:00,804 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-12-01 14:27:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,804 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-01 14:27:00,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,804 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-01 14:27:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 14:27:00,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 14:27:00,805 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 14:27:00,805 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 14:27:00,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 14:27:00,805 INFO L82 PathProgramCache]: Analyzing trace with hash 988481323, now seen corresponding path program 1 times [2018-12-01 14:27:00,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 14:27:00,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 14:27:00,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 14:27:00,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 14:27:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 14:27:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 14:27:00,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 14:27:00,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 14:27:00,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 14:27:00,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 14:27:00,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,819 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-12-01 14:27:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 14:27:00,832 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-01 14:27:00,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 14:27:00,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-01 14:27:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 14:27:00,833 INFO L225 Difference]: With dead ends: 16 [2018-12-01 14:27:00,833 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 14:27:00,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 14:27:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 14:27:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 14:27:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 14:27:00,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 14:27:00,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-01 14:27:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 14:27:00,834 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 14:27:00,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 14:27:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 14:27:00,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 14:27:00,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 14:27:00,858 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-01 14:27:00,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 14:27:00,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 14:27:00,859 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 32) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 29) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 29) no Hoare annotation was computed. [2018-12-01 14:27:00,859 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= main_~z~0 2147483647) (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 32) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 32) the Hoare annotation is: true [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2018-12-01 14:27:00,860 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-12-01 14:27:00,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:27:00 BoogieIcfgContainer [2018-12-01 14:27:00,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 14:27:00,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 14:27:00,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 14:27:00,868 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 14:27:00,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:27:00" (3/4) ... [2018-12-01 14:27:00,870 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 14:27:00,874 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 14:27:00,874 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 14:27:00,876 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-01 14:27:00,876 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 14:27:00,876 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 14:27:00,901 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_489e0986-496f-43b5-92d4-ba36d26237b9/bin-2019/uautomizer/witness.graphml [2018-12-01 14:27:00,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 14:27:00,902 INFO L168 Benchmark]: Toolchain (without parser) took 727.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-01 14:27:00,903 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:27:00,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.35 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 14:27:00,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:27:00,903 INFO L168 Benchmark]: Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 14:27:00,903 INFO L168 Benchmark]: RCFGBuilder took 168.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-01 14:27:00,904 INFO L168 Benchmark]: TraceAbstraction took 375.85 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2018-12-01 14:27:00,904 INFO L168 Benchmark]: Witness Printer took 34.19 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-01 14:27:00,905 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.35 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 168.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.85 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.19 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (z <= 2147483647 && x <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 6 error locations. SAFE Result, 0.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 55 SDslu, 26 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 765 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...