./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/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 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:25:05,435 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:25:05,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:25:05,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:25:05,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:25:05,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:25:05,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:25:05,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:25:05,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:25:05,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:25:05,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:25:05,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:25:05,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:25:05,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:25:05,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:25:05,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:25:05,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:25:05,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:25:05,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:25:05,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:25:05,456 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:25:05,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:25:05,457 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:25:05,457 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:25:05,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:25:05,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:25:05,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:25:05,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:25:05,459 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:25:05,460 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:25:05,460 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:25:05,461 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:25:05,461 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:25:05,461 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:25:05,462 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:25:05,462 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:25:05,463 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:25:05,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:25:05,473 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:25:05,473 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:25:05,473 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:25:05,474 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:25:05,474 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:25:05,474 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:25:05,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:25:05,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:25:05,476 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:25:05,476 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:25:05,476 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:25:05,476 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:25:05,476 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:25:05,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:25:05,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:25:05,477 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:25:05,478 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:25:05,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:25:05,478 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_bcdccdf5-9770-433a-a2ad-3ef76594bed3/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 -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2018-11-28 12:25:05,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:25:05,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:25:05,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:25:05,516 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:25:05,516 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:25:05,517 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:25:05,555 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/data/cd15060d4/9625fdd297794b71928bbdede61bd95f/FLAG6991a89d6 [2018-11-28 12:25:05,963 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:25:05,964 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:25:05,968 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/data/cd15060d4/9625fdd297794b71928bbdede61bd95f/FLAG6991a89d6 [2018-11-28 12:25:05,979 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/data/cd15060d4/9625fdd297794b71928bbdede61bd95f [2018-11-28 12:25:05,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:25:05,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:25:05,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:25:05,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:25:05,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:25:05,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:25:05" (1/1) ... [2018-11-28 12:25:05,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a39b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:05, skipping insertion in model container [2018-11-28 12:25:05,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:25:05" (1/1) ... [2018-11-28 12:25:05,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:25:06,009 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:25:06,109 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:25:06,111 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:25:06,120 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:25:06,128 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:25:06,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06 WrapperNode [2018-11-28 12:25:06,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:25:06,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:25:06,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:25:06,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:25:06,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:25:06,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:25:06,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:25:06,143 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:25:06,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... [2018-11-28 12:25:06,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:25:06,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:25:06,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:25:06,156 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:25:06,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/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 [2018-11-28 12:25:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:25:06,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:25:06,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:25:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:25:06,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:25:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:25:06,327 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:25:06,328 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:25:06,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:25:06 BoogieIcfgContainer [2018-11-28 12:25:06,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:25:06,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:25:06,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:25:06,331 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:25:06,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:25:05" (1/3) ... [2018-11-28 12:25:06,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9e73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:25:06, skipping insertion in model container [2018-11-28 12:25:06,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:25:06" (2/3) ... [2018-11-28 12:25:06,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9e73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:25:06, skipping insertion in model container [2018-11-28 12:25:06,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:25:06" (3/3) ... [2018-11-28 12:25:06,334 INFO L112 eAbstractionObserver]: Analyzing ICFG MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:25:06,343 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:25:06,349 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 12:25:06,363 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 12:25:06,388 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:25:06,389 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:25:06,389 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:25:06,389 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:25:06,389 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:25:06,390 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:25:06,390 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:25:06,390 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:25:06,390 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:25:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 12:25:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:25:06,408 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,411 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,416 INFO L82 PathProgramCache]: Analyzing trace with hash -778806590, now seen corresponding path program 1 times [2018-11-28 12:25:06,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:25:06,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:25:06,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:25:06,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:25:06,544 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-11-28 12:25:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,593 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2018-11-28 12:25:06,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:06,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:25:06,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,601 INFO L225 Difference]: With dead ends: 35 [2018-11-28 12:25:06,601 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 12:25:06,604 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 [2018-11-28 12:25:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 12:25:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-28 12:25:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:25:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-28 12:25:06,631 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2018-11-28 12:25:06,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,631 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-28 12:25:06,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:25:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-28 12:25:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 12:25:06,632 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,632 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,633 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1626799533, now seen corresponding path program 1 times [2018-11-28 12:25:06,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:25:06,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:25:06,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:25:06,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:25:06,662 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2018-11-28 12:25:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,706 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-28 12:25:06,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:25:06,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-28 12:25:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,707 INFO L225 Difference]: With dead ends: 26 [2018-11-28 12:25:06,707 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 12:25:06,707 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:25:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 12:25:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2018-11-28 12:25:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 12:25:06,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-28 12:25:06,710 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2018-11-28 12:25:06,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,710 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-28 12:25:06,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:25:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-28 12:25:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:25:06,711 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,711 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,711 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1108821980, now seen corresponding path program 1 times [2018-11-28 12:25:06,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:25:06,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:25:06,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:25:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:25:06,747 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2018-11-28 12:25:06,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,781 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-28 12:25:06,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:06,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 12:25:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,782 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:25:06,783 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 12:25:06,783 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 [2018-11-28 12:25:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 12:25:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-28 12:25:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 12:25:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-28 12:25:06,786 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2018-11-28 12:25:06,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,786 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-28 12:25:06,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:25:06,786 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-28 12:25:06,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:25:06,787 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,787 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,787 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,787 INFO L82 PathProgramCache]: Analyzing trace with hash -13742961, now seen corresponding path program 1 times [2018-11-28 12:25:06,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:25:06,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:25:06,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:25:06,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:25:06,807 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 3 states. [2018-11-28 12:25:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,846 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-28 12:25:06,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:06,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:25:06,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,847 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:25:06,847 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 12:25:06,847 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 [2018-11-28 12:25:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 12:25:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 12:25:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 12:25:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-28 12:25:06,851 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2018-11-28 12:25:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,851 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-28 12:25:06,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:25:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-28 12:25:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:25:06,852 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,852 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,852 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash -426031738, now seen corresponding path program 1 times [2018-11-28 12:25:06,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:25:06,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:25:06,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:25:06,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:25:06,881 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 3 states. [2018-11-28 12:25:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,899 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-28 12:25:06,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:06,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 12:25:06,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,900 INFO L225 Difference]: With dead ends: 26 [2018-11-28 12:25:06,900 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 12:25:06,901 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 [2018-11-28 12:25:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 12:25:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-11-28 12:25:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:25:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-28 12:25:06,904 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2018-11-28 12:25:06,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,904 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-28 12:25:06,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:25:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-28 12:25:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:25:06,905 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,905 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,905 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,906 INFO L82 PathProgramCache]: Analyzing trace with hash -322081935, now seen corresponding path program 1 times [2018-11-28 12:25:06,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:06,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:25:06,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:25:06,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:25:06,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:25:06,931 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 3 states. [2018-11-28 12:25:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:06,946 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-28 12:25:06,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:06,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 12:25:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:06,947 INFO L225 Difference]: With dead ends: 26 [2018-11-28 12:25:06,947 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 12:25:06,947 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 [2018-11-28 12:25:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 12:25:06,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 12:25:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:25:06,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-11-28 12:25:06,949 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2018-11-28 12:25:06,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:06,950 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-11-28 12:25:06,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:25:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-11-28 12:25:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:25:06,950 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:06,950 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:06,950 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:06,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:06,950 INFO L82 PathProgramCache]: Analyzing trace with hash -283092845, now seen corresponding path program 1 times [2018-11-28 12:25:06,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:06,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:06,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:06,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:06,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:06,992 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,095 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-28 12:25:07,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:25:07,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:25:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:25:07,096 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 9 states. [2018-11-28 12:25:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:07,200 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-28 12:25:07,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:25:07,201 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-11-28 12:25:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:07,201 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:25:07,201 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 12:25:07,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:25:07,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 12:25:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2018-11-28 12:25:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 12:25:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-28 12:25:07,204 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2018-11-28 12:25:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:07,204 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-28 12:25:07,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:25:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-28 12:25:07,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:25:07,205 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:07,205 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:07,206 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:07,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:07,206 INFO L82 PathProgramCache]: Analyzing trace with hash -185943556, now seen corresponding path program 1 times [2018-11-28 12:25:07,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:07,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:07,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:07,243 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,323 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-28 12:25:07,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:25:07,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:25:07,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:25:07,324 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2018-11-28 12:25:07,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:07,401 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-11-28 12:25:07,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:25:07,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-28 12:25:07,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:07,402 INFO L225 Difference]: With dead ends: 33 [2018-11-28 12:25:07,402 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 12:25:07,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:25:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 12:25:07,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2018-11-28 12:25:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 12:25:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 12:25:07,405 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 15 [2018-11-28 12:25:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:07,405 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 12:25:07,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:25:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 12:25:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:25:07,405 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:07,406 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:07,406 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:07,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:07,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1469282891, now seen corresponding path program 1 times [2018-11-28 12:25:07,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:07,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:07,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:07,436 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,476 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 12:25:07,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:25:07,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:25:07,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:25:07,477 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 5 states. [2018-11-28 12:25:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:07,529 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-28 12:25:07,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:25:07,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-28 12:25:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:07,530 INFO L225 Difference]: With dead ends: 28 [2018-11-28 12:25:07,530 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 12:25:07,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:25:07,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 12:25:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 12:25:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 12:25:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-28 12:25:07,534 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2018-11-28 12:25:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:07,534 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-28 12:25:07,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:25:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-28 12:25:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:25:07,535 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:07,535 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:07,535 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:07,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:07,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1696870686, now seen corresponding path program 1 times [2018-11-28 12:25:07,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:07,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:07,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:07,576 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,614 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 12:25:07,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:25:07,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:25:07,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:25:07,615 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 5 states. [2018-11-28 12:25:07,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:07,703 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-11-28 12:25:07,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:25:07,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-28 12:25:07,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:07,705 INFO L225 Difference]: With dead ends: 39 [2018-11-28 12:25:07,705 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 12:25:07,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:25:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 12:25:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-11-28 12:25:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 12:25:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-11-28 12:25:07,709 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 17 [2018-11-28 12:25:07,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:07,709 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-11-28 12:25:07,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:25:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-11-28 12:25:07,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:25:07,710 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:07,710 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:07,710 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:07,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1063383767, now seen corresponding path program 1 times [2018-11-28 12:25:07,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:07,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:07,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:07,734 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,769 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-28 12:25:07,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:25:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:25:07,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:25:07,769 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 4 states. [2018-11-28 12:25:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:07,780 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2018-11-28 12:25:07,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:25:07,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-28 12:25:07,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:07,781 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:25:07,781 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 12:25:07,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:25:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 12:25:07,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 12:25:07,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 12:25:07,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-28 12:25:07,784 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 18 [2018-11-28 12:25:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:07,785 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-28 12:25:07,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:25:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-28 12:25:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:25:07,785 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:07,785 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:07,786 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:07,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:07,786 INFO L82 PathProgramCache]: Analyzing trace with hash -412918366, now seen corresponding path program 2 times [2018-11-28 12:25:07,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:07,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:07,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:07,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:07,843 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:07,850 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:25:07,863 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:25:07,863 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:25:07,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:07,969 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:07,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-11-28 12:25:07,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:25:07,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:25:07,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:25:07,970 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 14 states. [2018-11-28 12:25:08,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:08,133 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-11-28 12:25:08,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:25:08,133 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2018-11-28 12:25:08,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:08,134 INFO L225 Difference]: With dead ends: 57 [2018-11-28 12:25:08,134 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 12:25:08,134 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2018-11-28 12:25:08,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 12:25:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2018-11-28 12:25:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 12:25:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-11-28 12:25:08,138 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 21 [2018-11-28 12:25:08,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:08,138 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-11-28 12:25:08,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:25:08,139 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-11-28 12:25:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:25:08,139 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:08,139 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:08,140 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:08,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:08,140 INFO L82 PathProgramCache]: Analyzing trace with hash 84432589, now seen corresponding path program 2 times [2018-11-28 12:25:08,140 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:08,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:08,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,142 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:25:08,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:08,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:25:08,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:08,195 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:08,201 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:25:08,207 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:25:08,207 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:25:08,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:25:08,235 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:08,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-28 12:25:08,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:25:08,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:25:08,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:25:08,236 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 7 states. [2018-11-28 12:25:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:08,265 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-11-28 12:25:08,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:25:08,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-28 12:25:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:08,268 INFO L225 Difference]: With dead ends: 52 [2018-11-28 12:25:08,268 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 12:25:08,269 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:25:08,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 12:25:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-11-28 12:25:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-28 12:25:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2018-11-28 12:25:08,273 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 22 [2018-11-28 12:25:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:08,273 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2018-11-28 12:25:08,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:25:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-11-28 12:25:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:25:08,274 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:08,274 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:08,274 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:08,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:08,275 INFO L82 PathProgramCache]: Analyzing trace with hash -464659025, now seen corresponding path program 2 times [2018-11-28 12:25:08,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:08,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:08,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,276 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:25:08,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 12:25:08,300 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:08,300 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:08,307 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:25:08,311 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:25:08,311 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:25:08,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:25:08,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:08,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2018-11-28 12:25:08,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:25:08,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:25:08,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:25:08,361 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 10 states. [2018-11-28 12:25:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:08,409 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2018-11-28 12:25:08,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:25:08,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2018-11-28 12:25:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:08,410 INFO L225 Difference]: With dead ends: 51 [2018-11-28 12:25:08,410 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 12:25:08,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:25:08,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 12:25:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2018-11-28 12:25:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 12:25:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-28 12:25:08,414 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 24 [2018-11-28 12:25:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:08,414 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-11-28 12:25:08,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:25:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-28 12:25:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-28 12:25:08,415 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:08,415 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 12:25:08,415 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:25:08,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash -606346541, now seen corresponding path program 3 times [2018-11-28 12:25:08,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:25:08,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:25:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,417 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:25:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:25:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-28 12:25:08,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:25:08,511 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:25:08,517 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:25:08,527 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-11-28 12:25:08,527 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:25:08,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-28 12:25:08,616 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:25:08,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-11-28 12:25:08,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-28 12:25:08,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-28 12:25:08,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-11-28 12:25:08,617 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 16 states. [2018-11-28 12:25:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:08,838 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-28 12:25:08,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:25:08,838 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-11-28 12:25:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:08,838 INFO L225 Difference]: With dead ends: 43 [2018-11-28 12:25:08,838 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:25:08,839 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2018-11-28 12:25:08,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:25:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:25:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:25:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:25:08,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-11-28 12:25:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:08,840 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:25:08,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-28 12:25:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:25:08,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:25:08,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:25:08,921 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:25:08,921 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 16 28) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 16 28) no Hoare annotation was computed. [2018-11-28 12:25:08,921 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-28 12:25:08,922 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 16 28) the Hoare annotation is: true [2018-11-28 12:25:08,922 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-28 12:25:08,922 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:25:08,922 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-28 12:25:08,922 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (or (and (<= main_~y~0 (+ main_~z~0 99)) (<= main_~x~0 2147483647) (<= main_~z~0 1) (<= 100 main_~y~0)) (let ((.cse0 (+ main_~z~0 100))) (and (<= .cse0 main_~y~0) (<= main_~y~0 100) (<= main_~x~0 (+ main_~y~0 2147483448)) (<= 99 main_~y~0) (<= main_~y~0 .cse0)))) [2018-11-28 12:25:08,922 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-11-28 12:25:08,922 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-28 12:25:08,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:25:08 BoogieIcfgContainer [2018-11-28 12:25:08,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:25:08,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:25:08,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:25:08,931 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:25:08,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:25:06" (3/4) ... [2018-11-28 12:25:08,935 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:25:08,939 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:25:08,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:25:08,942 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 12:25:08,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:25:08,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:25:08,970 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bcdccdf5-9770-433a-a2ad-3ef76594bed3/bin-2019/uautomizer/witness.graphml [2018-11-28 12:25:08,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:25:08,971 INFO L168 Benchmark]: Toolchain (without parser) took 2988.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 954.4 MB in the beginning and 961.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 123.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:25:08,972 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. [2018-11-28 12:25:08,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:25:08,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.50 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:25:08,972 INFO L168 Benchmark]: Boogie Preprocessor took 13.14 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:25:08,972 INFO L168 Benchmark]: RCFGBuilder took 171.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:25:08,973 INFO L168 Benchmark]: TraceAbstraction took 2601.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.7 MB in the end (delta: 151.6 MB). Peak memory consumption was 151.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:25:08,973 INFO L168 Benchmark]: Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 964.7 MB in the beginning and 961.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:25:08,975 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 145.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.50 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.14 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 171.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2601.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.7 MB in the end (delta: 151.6 MB). Peak memory consumption was 151.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 964.7 MB in the beginning and 961.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((y <= z + 99 && x <= 2147483647) && z <= 1) && 100 <= y) || ((((z + 100 <= y && y <= 100) && x <= y + 2147483448) && 99 <= y) && y <= z + 100) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 6 error locations. SAFE Result, 2.5s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 185 SDslu, 264 SDs, 0 SdLazy, 548 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=12, 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, 15 MinimizatonAttempts, 32 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 42 HoareAnnotationTreeSize, 5 FomulaSimplifications, 213 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 110 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 411 ConstructedInterpolants, 0 QuantifiedInterpolants, 41678 SizeOfPredicates, 7 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 58/282 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...