./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 0.1.23-1dbac8b [2018-11-10 01:07:39,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:07:39,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:07:39,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:07:39,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:07:39,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:07:39,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:07:39,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:07:39,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:07:39,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:07:39,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:07:39,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:07:39,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:07:39,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:07:39,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:07:39,354 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:07:39,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:07:39,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:07:39,357 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:07:39,358 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:07:39,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:07:39,359 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:07:39,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:07:39,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:07:39,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:07:39,361 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:07:39,362 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:07:39,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:07:39,363 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:07:39,364 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:07:39,364 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:07:39,364 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:07:39,365 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:07:39,365 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:07:39,365 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:07:39,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:07:39,366 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 01:07:39,373 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:07:39,373 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:07:39,374 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:07:39,374 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 01:07:39,375 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 01:07:39,375 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 01:07:39,375 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 01:07:39,375 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:07:39,375 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 01:07:39,375 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:07:39,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 01:07:39,376 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:07:39,376 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:07:39,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 01:07:39,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 01:07:39,378 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:07:39,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 01:07:39,378 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_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:39,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:07:39,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:07:39,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:07:39,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:07:39,416 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:07:39,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 01:07:39,463 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/data/3c14c2168/4fd20780755f450b9a7938eb136ed0a6/FLAGa348d48b9 [2018-11-10 01:07:39,796 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:07:39,796 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/sv-benchmarks/c/termination-crafted/MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 01:07:39,802 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/data/3c14c2168/4fd20780755f450b9a7938eb136ed0a6/FLAGa348d48b9 [2018-11-10 01:07:39,813 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/data/3c14c2168/4fd20780755f450b9a7938eb136ed0a6 [2018-11-10 01:07:39,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:07:39,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 01:07:39,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:07:39,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:07:39,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:07:39,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a97cf5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39, skipping insertion in model container [2018-11-10 01:07:39,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:07:39,843 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:07:39,955 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:07:39,957 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:07:39,969 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:07:39,980 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:07:39,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39 WrapperNode [2018-11-10 01:07:39,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:07:39,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:07:39,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:07:39,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:07:39,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:39,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:40,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:40,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... [2018-11-10 01:07:40,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:07:40,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:07:40,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:07:40,002 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:07:40,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 01:07:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:07:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 01:07:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 01:07:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 01:07:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 01:07:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:07:40,180 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:07:40,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:07:40 BoogieIcfgContainer [2018-11-10 01:07:40,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:07:40,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 01:07:40,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 01:07:40,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 01:07:40,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:39" (1/3) ... [2018-11-10 01:07:40,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790f34df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:40, skipping insertion in model container [2018-11-10 01:07:40,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:39" (2/3) ... [2018-11-10 01:07:40,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790f34df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:40, skipping insertion in model container [2018-11-10 01:07:40,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:07:40" (3/3) ... [2018-11-10 01:07:40,188 INFO L112 eAbstractionObserver]: Analyzing ICFG MenloPark_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 01:07:40,196 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 01:07:40,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 01:07:40,217 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 01:07:40,244 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 01:07:40,245 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 01:07:40,245 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 01:07:40,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 01:07:40,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 01:07:40,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 01:07:40,245 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 01:07:40,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 01:07:40,245 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 01:07:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 01:07:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 01:07:40,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,267 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,269 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,275 INFO L82 PathProgramCache]: Analyzing trace with hash -895809593, now seen corresponding path program 1 times [2018-11-10 01:07:40,277 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:07:40,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:07:40,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:07:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,408 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-10 01:07:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,443 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-11-10 01:07:40,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:40,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 01:07:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,452 INFO L225 Difference]: With dead ends: 37 [2018-11-10 01:07:40,452 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 01:07:40,455 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 01:07:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-10 01:07:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 01:07:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-10 01:07:40,479 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-11-10 01:07:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,479 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-10 01:07:40,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:07:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-10 01:07:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 01:07:40,480 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,480 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,480 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2000293559, now seen corresponding path program 1 times [2018-11-10 01:07:40,481 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:07:40,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:07:40,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:07:40,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:07:40,505 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2018-11-10 01:07:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,559 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-10 01:07:40,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:07:40,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 01:07:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,560 INFO L225 Difference]: With dead ends: 28 [2018-11-10 01:07:40,560 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 01:07:40,560 INFO L605 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 [2018-11-10 01:07:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 01:07:40,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-11-10 01:07:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 01:07:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-10 01:07:40,563 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 9 [2018-11-10 01:07:40,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,563 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-10 01:07:40,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:07:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-10 01:07:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 01:07:40,564 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,564 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,564 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1879558135, now seen corresponding path program 1 times [2018-11-10 01:07:40,565 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:07:40,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:07:40,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:07:40,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,590 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 3 states. [2018-11-10 01:07:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,627 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-10 01:07:40,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:40,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 01:07:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,629 INFO L225 Difference]: With dead ends: 26 [2018-11-10 01:07:40,629 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 01:07:40,629 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 01:07:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-11-10 01:07:40,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 01:07:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-10 01:07:40,633 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-11-10 01:07:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,634 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-10 01:07:40,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:07:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-10 01:07:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 01:07:40,634 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,634 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,634 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1863240011, now seen corresponding path program 1 times [2018-11-10 01:07:40,635 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:07:40,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:07:40,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:07:40,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,658 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 3 states. [2018-11-10 01:07:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,697 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-10 01:07:40,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:40,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 01:07:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,698 INFO L225 Difference]: With dead ends: 26 [2018-11-10 01:07:40,698 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 01:07:40,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 01:07:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-10 01:07:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 01:07:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-11-10 01:07:40,701 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2018-11-10 01:07:40,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,701 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-11-10 01:07:40,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:07:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-11-10 01:07:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 01:07:40,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,702 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,702 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1925865547, now seen corresponding path program 1 times [2018-11-10 01:07:40,702 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:07:40,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:07:40,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:07:40,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,725 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 3 states. [2018-11-10 01:07:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,741 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-10 01:07:40,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:40,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-10 01:07:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,742 INFO L225 Difference]: With dead ends: 28 [2018-11-10 01:07:40,742 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 01:07:40,742 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 01:07:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-10 01:07:40,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 01:07:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-10 01:07:40,745 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 12 [2018-11-10 01:07:40,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,746 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-10 01:07:40,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:07:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-10 01:07:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 01:07:40,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,746 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,747 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,747 INFO L82 PathProgramCache]: Analyzing trace with hash -427710131, now seen corresponding path program 1 times [2018-11-10 01:07:40,747 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:07:40,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 01:07:40,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:07:40,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:07:40,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,781 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 3 states. [2018-11-10 01:07:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:40,793 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-10 01:07:40,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:40,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-10 01:07:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:40,793 INFO L225 Difference]: With dead ends: 28 [2018-11-10 01:07:40,794 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 01:07:40,794 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:07:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 01:07:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 01:07:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 01:07:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-10 01:07:40,797 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 13 [2018-11-10 01:07:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:40,797 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-10 01:07:40,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:07:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-10 01:07:40,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 01:07:40,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:40,798 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:40,798 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:40,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:40,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1255492539, now seen corresponding path program 1 times [2018-11-10 01:07:40,798 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:40,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:40,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:40,838 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:40,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:40,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:40,975 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:40,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-10 01:07:40,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 01:07:40,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 01:07:40,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:07:40,976 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2018-11-10 01:07:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:41,081 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-10 01:07:41,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:07:41,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-11-10 01:07:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:41,082 INFO L225 Difference]: With dead ends: 37 [2018-11-10 01:07:41,082 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 01:07:41,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:07:41,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 01:07:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2018-11-10 01:07:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 01:07:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-11-10 01:07:41,085 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 16 [2018-11-10 01:07:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:41,085 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-11-10 01:07:41,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 01:07:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-11-10 01:07:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 01:07:41,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:41,086 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:41,086 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:41,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:41,086 INFO L82 PathProgramCache]: Analyzing trace with hash 265563093, now seen corresponding path program 1 times [2018-11-10 01:07:41,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:41,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:41,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:41,123 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:41,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,239 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:41,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-10 01:07:41,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:07:41,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:07:41,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:07:41,241 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 7 states. [2018-11-10 01:07:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:41,307 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-11-10 01:07:41,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 01:07:41,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-10 01:07:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:41,308 INFO L225 Difference]: With dead ends: 36 [2018-11-10 01:07:41,308 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 01:07:41,309 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 01:07:41,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 01:07:41,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-11-10 01:07:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 01:07:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-10 01:07:41,312 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 17 [2018-11-10 01:07:41,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:41,312 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-10 01:07:41,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:07:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-10 01:07:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 01:07:41,312 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:41,313 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:41,313 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:41,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:41,313 INFO L82 PathProgramCache]: Analyzing trace with hash -357478659, now seen corresponding path program 1 times [2018-11-10 01:07:41,313 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:41,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:41,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:41,351 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:41,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,389 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:41,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-10 01:07:41,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:07:41,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:07:41,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:07:41,390 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 5 states. [2018-11-10 01:07:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:41,445 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-10 01:07:41,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:07:41,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-10 01:07:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:41,446 INFO L225 Difference]: With dead ends: 31 [2018-11-10 01:07:41,446 INFO L226 Difference]: Without dead ends: 30 [2018-11-10 01:07:41,447 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:07:41,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-10 01:07:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-10 01:07:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 01:07:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-11-10 01:07:41,449 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 18 [2018-11-10 01:07:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:41,450 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-11-10 01:07:41,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:07:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-11-10 01:07:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 01:07:41,450 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:41,451 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:41,451 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:41,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:41,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1803063511, now seen corresponding path program 1 times [2018-11-10 01:07:41,452 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:41,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:41,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:41,492 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:41,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,529 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:41,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-10 01:07:41,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:07:41,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:07:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:07:41,530 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 5 states. [2018-11-10 01:07:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:41,597 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-11-10 01:07:41,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 01:07:41,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-10 01:07:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:41,598 INFO L225 Difference]: With dead ends: 43 [2018-11-10 01:07:41,599 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 01:07:41,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 01:07:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 01:07:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-10 01:07:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 01:07:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-11-10 01:07:41,603 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 19 [2018-11-10 01:07:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:41,603 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-11-10 01:07:41,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:07:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-11-10 01:07:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 01:07:41,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:41,604 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:41,604 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:41,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:41,605 INFO L82 PathProgramCache]: Analyzing trace with hash 60394047, now seen corresponding path program 1 times [2018-11-10 01:07:41,605 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:41,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:41,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:41,648 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:41,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:41,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,679 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:41,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-10 01:07:41,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 01:07:41,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 01:07:41,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 01:07:41,680 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 4 states. [2018-11-10 01:07:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:41,690 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2018-11-10 01:07:41,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:07:41,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 01:07:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:41,691 INFO L225 Difference]: With dead ends: 38 [2018-11-10 01:07:41,691 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 01:07:41,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:07:41,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 01:07:41,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 01:07:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 01:07:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-11-10 01:07:41,695 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 20 [2018-11-10 01:07:41,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:41,696 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-11-10 01:07:41,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 01:07:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-11-10 01:07:41,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 01:07:41,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:41,696 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:41,697 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:41,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:41,697 INFO L82 PathProgramCache]: Analyzing trace with hash 727079855, now seen corresponding path program 2 times [2018-11-10 01:07:41,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:41,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:41,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:07:41,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:41,750 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:41,755 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 01:07:41,762 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 01:07:41,762 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 01:07:41,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:41,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:41,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-11-10 01:07:41,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 01:07:41,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 01:07:41,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-11-10 01:07:41,859 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 14 states. [2018-11-10 01:07:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:42,035 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2018-11-10 01:07:42,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 01:07:42,036 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-11-10 01:07:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:42,037 INFO L225 Difference]: With dead ends: 64 [2018-11-10 01:07:42,037 INFO L226 Difference]: Without dead ends: 63 [2018-11-10 01:07:42,037 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2018-11-10 01:07:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-10 01:07:42,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2018-11-10 01:07:42,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-10 01:07:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2018-11-10 01:07:42,042 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 24 [2018-11-10 01:07:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:42,042 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2018-11-10 01:07:42,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 01:07:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2018-11-10 01:07:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 01:07:42,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:42,043 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:42,043 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:42,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:42,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1064639073, now seen corresponding path program 2 times [2018-11-10 01:07:42,044 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:42,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:42,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,045 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 01:07:42,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:07:42,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:42,083 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:42,091 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 01:07:42,097 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 01:07:42,097 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 01:07:42,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:07:42,140 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:42,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-10 01:07:42,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:07:42,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:07:42,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:07:42,141 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2018-11-10 01:07:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:42,166 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-11-10 01:07:42,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:07:42,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-10 01:07:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:42,167 INFO L225 Difference]: With dead ends: 59 [2018-11-10 01:07:42,167 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 01:07:42,168 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:07:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 01:07:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-10 01:07:42,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-10 01:07:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-11-10 01:07:42,172 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 25 [2018-11-10 01:07:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:42,173 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-11-10 01:07:42,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:07:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-10 01:07:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:07:42,173 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:42,173 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:42,174 INFO L424 AbstractCegarLoop]: === Iteration 14 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:42,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:42,174 INFO L82 PathProgramCache]: Analyzing trace with hash 915934307, now seen corresponding path program 2 times [2018-11-10 01:07:42,174 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:42,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:42,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,178 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 01:07:42,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 01:07:42,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:42,204 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:42,210 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 01:07:42,217 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 01:07:42,217 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 01:07:42,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:07:42,275 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:42,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2018-11-10 01:07:42,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 01:07:42,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 01:07:42,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-10 01:07:42,276 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 10 states. [2018-11-10 01:07:42,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:42,319 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-11-10 01:07:42,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:07:42,319 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-11-10 01:07:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:42,320 INFO L225 Difference]: With dead ends: 58 [2018-11-10 01:07:42,320 INFO L226 Difference]: Without dead ends: 57 [2018-11-10 01:07:42,320 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2018-11-10 01:07:42,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-10 01:07:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2018-11-10 01:07:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 01:07:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-11-10 01:07:42,327 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 27 [2018-11-10 01:07:42,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:42,327 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-11-10 01:07:42,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 01:07:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-11-10 01:07:42,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 01:07:42,328 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:07:42,328 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2018-11-10 01:07:42,330 INFO L424 AbstractCegarLoop]: === Iteration 15 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 01:07:42,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:07:42,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1661621131, now seen corresponding path program 3 times [2018-11-10 01:07:42,330 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:07:42,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:07:42,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,331 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 01:07:42,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:07:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:07:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-10 01:07:42,404 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 01:07:42,404 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/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 [2018-11-10 01:07:42,410 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 01:07:42,424 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-11-10 01:07:42,424 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 01:07:42,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 01:07:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 69 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-10 01:07:42,510 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 01:07:42,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-11-10 01:07:42,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-10 01:07:42,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-10 01:07:42,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-11-10 01:07:42,511 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 16 states. [2018-11-10 01:07:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:07:42,719 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-11-10 01:07:42,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 01:07:42,720 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 48 [2018-11-10 01:07:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:07:42,720 INFO L225 Difference]: With dead ends: 49 [2018-11-10 01:07:42,721 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 01:07:42,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2018-11-10 01:07:42,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 01:07:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 01:07:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 01:07:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 01:07:42,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-11-10 01:07:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:07:42,722 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 01:07:42,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-10 01:07:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 01:07:42,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 01:07:42,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 01:07:42,782 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 01:07:42,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 01:07:42,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 01:07:42,782 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 01:07:42,782 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 01:07:42,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 01:07:42,782 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 16 28) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 16 28) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 16 28) the Hoare annotation is: true [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-10 01:07:42,783 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 01:07:42,784 INFO L421 ceAbstractionStarter]: At program point L22-3(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)))) [2018-11-10 01:07:42,784 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-10 01:07:42,784 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-10 01:07:42,784 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 01:07:42,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:07:42 BoogieIcfgContainer [2018-11-10 01:07:42,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 01:07:42,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:07:42,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:07:42,794 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:07:42,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:07:40" (3/4) ... [2018-11-10 01:07:42,797 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 01:07:42,801 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 01:07:42,802 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 01:07:42,805 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 01:07:42,806 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 01:07:42,806 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 01:07:42,836 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ebf6f4a5-0c3d-49f8-9655-9c18df138a77/bin-2019/uautomizer/witness.graphml [2018-11-10 01:07:42,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:07:42,837 INFO L168 Benchmark]: Toolchain (without parser) took 3020.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 963.0 MB in the beginning and 958.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 135.2 MB. Max. memory is 11.5 GB. [2018-11-10 01:07:42,838 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:07:42,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.00 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:07:42,838 INFO L168 Benchmark]: Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:07:42,838 INFO L168 Benchmark]: RCFGBuilder took 179.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-10 01:07:42,839 INFO L168 Benchmark]: TraceAbstraction took 2611.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 963.9 MB in the end (delta: 155.1 MB). Peak memory consumption was 155.1 MB. Max. memory is 11.5 GB. [2018-11-10 01:07:42,839 INFO L168 Benchmark]: Witness Printer took 42.92 ms. Allocated memory is still 1.2 GB. Free memory was 963.9 MB in the beginning and 958.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-11-10 01:07:42,840 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.00 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2611.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 963.9 MB in the end (delta: 155.1 MB). Peak memory consumption was 155.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.92 ms. Allocated memory is still 1.2 GB. Free memory was 963.9 MB in the beginning and 958.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 24]: 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: 25]: 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, 24 locations, 6 error locations. SAFE Result, 2.5s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 206 SDslu, 324 SDs, 0 SdLazy, 579 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 33 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, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 467 ConstructedInterpolants, 0 QuantifiedInterpolants, 55103 SizeOfPredicates, 7 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 71/340 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...