./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/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 4c761fb15c9d367876fc9f1553874e9680fa1668 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:11,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:11,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:11,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:11,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:11,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:11,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:11,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:11,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:11,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:11,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:11,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:11,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:11,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:11,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:11,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:11,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:11,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:11,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:11,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:11,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:11,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:11,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:11,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:11,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:11,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:11,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:11,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:11,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:11,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:11,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:11,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:11,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:11,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:11,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:11,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:11,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:11,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:11,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:11,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:11,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:11,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 08:54:11,446 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:11,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:11,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:11,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:11,449 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:11,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:11,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:11,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:11,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:11,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:11,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:11,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:11,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:11,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:11,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:11,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:11,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:11,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:11,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:11,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:11,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:11,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/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 -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2019-10-22 08:54:11,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:11,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:11,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:11,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:11,495 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:11,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2019-10-22 08:54:11,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/data/1b5c01249/5359fc3722504c45a7b0b43d6ec31a13/FLAG69f13bc05 [2019-10-22 08:54:11,946 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:11,946 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2019-10-22 08:54:11,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/data/1b5c01249/5359fc3722504c45a7b0b43d6ec31a13/FLAG69f13bc05 [2019-10-22 08:54:12,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/data/1b5c01249/5359fc3722504c45a7b0b43d6ec31a13 [2019-10-22 08:54:12,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:12,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:12,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:12,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:12,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:12,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7464cab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,368 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:12,381 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:12,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,511 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:12,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:12,591 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:12,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12 WrapperNode [2019-10-22 08:54:12,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:12,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:12,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:12,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:12,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:12,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:12,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... [2019-10-22 08:54:12,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:12,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:12,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:12,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:12,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/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 [2019-10-22 08:54:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:13,027 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:13,027 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:54:13,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13 BoogieIcfgContainer [2019-10-22 08:54:13,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:13,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:13,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:13,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:13,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:12" (1/3) ... [2019-10-22 08:54:13,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a583376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:13, skipping insertion in model container [2019-10-22 08:54:13,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:12" (2/3) ... [2019-10-22 08:54:13,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a583376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:13, skipping insertion in model container [2019-10-22 08:54:13,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13" (3/3) ... [2019-10-22 08:54:13,044 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2019-10-22 08:54:13,073 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:13,079 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 08:54:13,100 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 08:54:13,140 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:13,140 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:13,140 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:13,141 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:13,143 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:13,144 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:13,144 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:13,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:13,160 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-22 08:54:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:13,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,167 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:13,169 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2019-10-22 08:54:13,185 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210913915] [2019-10-22 08:54:13,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210913915] [2019-10-22 08:54:13,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:13,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441236060] [2019-10-22 08:54:13,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:13,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:13,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:13,362 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2019-10-22 08:54:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,472 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2019-10-22 08:54:13,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:54:13,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 08:54:13,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,480 INFO L225 Difference]: With dead ends: 53 [2019-10-22 08:54:13,481 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 08:54:13,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 08:54:13,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 21. [2019-10-22 08:54:13,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 08:54:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-10-22 08:54:13,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 3 [2019-10-22 08:54:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,511 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-10-22 08:54:13,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-22 08:54:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:54:13,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,512 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:54:13,513 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:13,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,513 INFO L82 PathProgramCache]: Analyzing trace with hash 957477, now seen corresponding path program 1 times [2019-10-22 08:54:13,513 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870661662] [2019-10-22 08:54:13,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870661662] [2019-10-22 08:54:13,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:13,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151546530] [2019-10-22 08:54:13,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:13,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:13,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:13,550 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2019-10-22 08:54:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,647 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2019-10-22 08:54:13,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:54:13,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 08:54:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,649 INFO L225 Difference]: With dead ends: 47 [2019-10-22 08:54:13,649 INFO L226 Difference]: Without dead ends: 45 [2019-10-22 08:54:13,650 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-22 08:54:13,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2019-10-22 08:54:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:54:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-10-22 08:54:13,655 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 4 [2019-10-22 08:54:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,655 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-10-22 08:54:13,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:13,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-10-22 08:54:13,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:54:13,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:13,656 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash -511748973, now seen corresponding path program 1 times [2019-10-22 08:54:13,657 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104874043] [2019-10-22 08:54:13,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104874043] [2019-10-22 08:54:13,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,718 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:13,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969580464] [2019-10-22 08:54:13,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:13,718 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:13,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:13,719 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2019-10-22 08:54:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,867 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2019-10-22 08:54:13,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:54:13,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 08:54:13,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,869 INFO L225 Difference]: With dead ends: 79 [2019-10-22 08:54:13,869 INFO L226 Difference]: Without dead ends: 78 [2019-10-22 08:54:13,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:54:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-10-22 08:54:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2019-10-22 08:54:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-10-22 08:54:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2019-10-22 08:54:13,886 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 8 [2019-10-22 08:54:13,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:13,886 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2019-10-22 08:54:13,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2019-10-22 08:54:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:54:13,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:13,887 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:13,887 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:13,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,887 INFO L82 PathProgramCache]: Analyzing trace with hash -511749165, now seen corresponding path program 1 times [2019-10-22 08:54:13,887 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325490910] [2019-10-22 08:54:13,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,925 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325490910] [2019-10-22 08:54:13,926 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,926 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:13,926 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856486142] [2019-10-22 08:54:13,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:13,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:13,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:13,927 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand 4 states. [2019-10-22 08:54:13,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,987 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2019-10-22 08:54:13,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:13,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 08:54:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:13,991 INFO L225 Difference]: With dead ends: 96 [2019-10-22 08:54:13,991 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 08:54:13,991 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:13,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 08:54:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 42. [2019-10-22 08:54:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 08:54:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2019-10-22 08:54:14,002 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 8 [2019-10-22 08:54:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,002 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2019-10-22 08:54:14,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2019-10-22 08:54:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:54:14,003 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,003 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1315651091, now seen corresponding path program 1 times [2019-10-22 08:54:14,004 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936612635] [2019-10-22 08:54:14,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936612635] [2019-10-22 08:54:14,030 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:14,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148179188] [2019-10-22 08:54:14,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:14,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:14,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:14,032 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 3 states. [2019-10-22 08:54:14,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,060 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2019-10-22 08:54:14,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:14,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 08:54:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,061 INFO L225 Difference]: With dead ends: 42 [2019-10-22 08:54:14,061 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 08:54:14,061 INFO L600 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 [2019-10-22 08:54:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 08:54:14,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-22 08:54:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-22 08:54:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2019-10-22 08:54:14,068 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 9 [2019-10-22 08:54:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,068 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-10-22 08:54:14,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2019-10-22 08:54:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:54:14,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,069 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,069 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,069 INFO L82 PathProgramCache]: Analyzing trace with hash -2115076497, now seen corresponding path program 1 times [2019-10-22 08:54:14,070 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732774511] [2019-10-22 08:54:14,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732774511] [2019-10-22 08:54:14,097 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,097 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461462769] [2019-10-22 08:54:14,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:14,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:14,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:14,098 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 4 states. [2019-10-22 08:54:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,137 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2019-10-22 08:54:14,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:14,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:54:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,138 INFO L225 Difference]: With dead ends: 75 [2019-10-22 08:54:14,138 INFO L226 Difference]: Without dead ends: 40 [2019-10-22 08:54:14,139 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-22 08:54:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2019-10-22 08:54:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 08:54:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-10-22 08:54:14,143 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 10 [2019-10-22 08:54:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,143 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2019-10-22 08:54:14,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2019-10-22 08:54:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:54:14,144 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,144 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,144 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2115076689, now seen corresponding path program 1 times [2019-10-22 08:54:14,145 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299982846] [2019-10-22 08:54:14,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,146 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299982846] [2019-10-22 08:54:14,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:14,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026165388] [2019-10-22 08:54:14,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,179 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 5 states. [2019-10-22 08:54:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,277 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2019-10-22 08:54:14,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:54:14,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 08:54:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,278 INFO L225 Difference]: With dead ends: 54 [2019-10-22 08:54:14,278 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 08:54:14,279 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:54:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 08:54:14,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2019-10-22 08:54:14,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-22 08:54:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2019-10-22 08:54:14,283 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 10 [2019-10-22 08:54:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,284 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2019-10-22 08:54:14,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2019-10-22 08:54:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:54:14,284 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,285 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,285 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1142867855, now seen corresponding path program 1 times [2019-10-22 08:54:14,285 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921231375] [2019-10-22 08:54:14,286 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,286 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921231375] [2019-10-22 08:54:14,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:14,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704361163] [2019-10-22 08:54:14,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:14,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:14,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:14,332 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 3 states. [2019-10-22 08:54:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,353 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-22 08:54:14,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:14,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-22 08:54:14,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,356 INFO L225 Difference]: With dead ends: 44 [2019-10-22 08:54:14,356 INFO L226 Difference]: Without dead ends: 43 [2019-10-22 08:54:14,356 INFO L600 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 [2019-10-22 08:54:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-22 08:54:14,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-22 08:54:14,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 08:54:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2019-10-22 08:54:14,360 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 11 [2019-10-22 08:54:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,361 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2019-10-22 08:54:14,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:14,366 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2019-10-22 08:54:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:54:14,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,366 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,367 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1620314709, now seen corresponding path program 1 times [2019-10-22 08:54:14,367 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291921807] [2019-10-22 08:54:14,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291921807] [2019-10-22 08:54:14,427 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465630610] [2019-10-22 08:54:14,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,428 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 5 states. [2019-10-22 08:54:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,487 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2019-10-22 08:54:14,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:14,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-22 08:54:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,488 INFO L225 Difference]: With dead ends: 56 [2019-10-22 08:54:14,488 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 08:54:14,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 08:54:14,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 08:54:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 08:54:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-10-22 08:54:14,492 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2019-10-22 08:54:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,492 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-10-22 08:54:14,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-10-22 08:54:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:54:14,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,493 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,493 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:54:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1069165097, now seen corresponding path program 1 times [2019-10-22 08:54:14,494 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579706687] [2019-10-22 08:54:14,494 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,494 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:14,525 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579706687] [2019-10-22 08:54:14,525 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,525 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:14,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548561205] [2019-10-22 08:54:14,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:14,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:14,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:14,526 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2019-10-22 08:54:14,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:14,570 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-10-22 08:54:14,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:14,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 08:54:14,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:14,571 INFO L225 Difference]: With dead ends: 28 [2019-10-22 08:54:14,571 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:14,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:14,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-22 08:54:14,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:14,572 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:14,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:14,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:14,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:54:14,626 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:54:14,626 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-10-22 08:54:14,626 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-10-22 08:54:14,627 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,627 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-10-22 08:54:14,627 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2019-10-22 08:54:14,627 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647) (<= 0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~y~0)) [2019-10-22 08:54:14,627 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2019-10-22 08:54:14,627 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L439 ceAbstractionStarter]: At program point L26(lines 13 27) the Hoare annotation is: (or (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483647))) [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,628 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-10-22 08:54:14,629 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-10-22 08:54:14,629 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-10-22 08:54:14,629 INFO L443 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,629 INFO L443 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,630 INFO L443 ceAbstractionStarter]: For program point L18-4(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,630 INFO L443 ceAbstractionStarter]: For program point L18-5(line 18) no Hoare annotation was computed. [2019-10-22 08:54:14,630 INFO L443 ceAbstractionStarter]: For program point L18-6(lines 18 24) no Hoare annotation was computed. [2019-10-22 08:54:14,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:14 BoogieIcfgContainer [2019-10-22 08:54:14,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:14,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:14,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:14,645 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:14,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:13" (3/4) ... [2019-10-22 08:54:14,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:14,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:54:14,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:54:14,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2b95f163-05e5-4d2d-b33b-cc391c88337c/bin/uautomizer/witness.graphml [2019-10-22 08:54:14,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:14,706 INFO L168 Benchmark]: Toolchain (without parser) took 2352.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 949.9 MB in the beginning and 973.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 130.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,706 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:14,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -200.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:14,708 INFO L168 Benchmark]: Boogie Preprocessor took 25.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-10-22 08:54:14,708 INFO L168 Benchmark]: RCFGBuilder took 381.71 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,708 INFO L168 Benchmark]: TraceAbstraction took 1615.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 151.4 MB). Peak memory consumption was 151.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,709 INFO L168 Benchmark]: Witness Printer took 59.64 ms. Allocated memory is still 1.2 GB. Free memory was 979.2 MB in the beginning and 973.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:14,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -200.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. * RCFGBuilder took 381.71 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1615.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 151.4 MB). Peak memory consumption was 151.4 MB. Max. memory is 11.5 GB. * Witness Printer took 59.64 ms. Allocated memory is still 1.2 GB. Free memory was 979.2 MB in the beginning and 973.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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: 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 || x <= y + 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && y <= 2147483647) && 0 <= x) && 0 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 8 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 260 SDslu, 39 SDs, 0 SdLazy, 342 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 65 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 22 HoareAnnotationTreeSize, 2 FomulaSimplifications, 39 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2067 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...