./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 22:33:21,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 22:33:21,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 22:33:21,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 22:33:21,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 22:33:21,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 22:33:21,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 22:33:21,376 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 22:33:21,377 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 22:33:21,378 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 22:33:21,379 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 22:33:21,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 22:33:21,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 22:33:21,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 22:33:21,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 22:33:21,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 22:33:21,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 22:33:21,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 22:33:21,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 22:33:21,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 22:33:21,386 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 22:33:21,387 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 22:33:21,388 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 22:33:21,389 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 22:33:21,389 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 22:33:21,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 22:33:21,390 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 22:33:21,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 22:33:21,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 22:33:21,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 22:33:21,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 22:33:21,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 22:33:21,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 22:33:21,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 22:33:21,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 22:33:21,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 22:33:21,394 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-09 22:33:21,404 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 22:33:21,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 22:33:21,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 22:33:21,405 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 22:33:21,405 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 22:33:21,405 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 22:33:21,405 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 22:33:21,406 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 22:33:21,406 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 22:33:21,407 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 22:33:21,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:33:21,408 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 22:33:21,408 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 22:33:21,408 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 22:33:21,408 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 22:33:21,408 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 22:33:21,408 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 22:33:21,408 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_88fb7e36-1894-4568-b207-3486066d6ad2/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-11-09 22:33:21,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 22:33:21,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 22:33:21,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 22:33:21,442 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 22:33:21,443 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 22:33:21,443 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-09 22:33:21,478 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/data/2b7896cbe/88b9dbf649594ed0904f7e1c9716e9cd/FLAG4ef627903 [2018-11-09 22:33:21,874 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 22:33:21,875 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-09 22:33:21,879 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/data/2b7896cbe/88b9dbf649594ed0904f7e1c9716e9cd/FLAG4ef627903 [2018-11-09 22:33:21,887 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/data/2b7896cbe/88b9dbf649594ed0904f7e1c9716e9cd [2018-11-09 22:33:21,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 22:33:21,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 22:33:21,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 22:33:21,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 22:33:21,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 22:33:21,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:33:21" (1/1) ... [2018-11-09 22:33:21,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1103724a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:21, skipping insertion in model container [2018-11-09 22:33:21,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:33:21" (1/1) ... [2018-11-09 22:33:21,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 22:33:21,911 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 22:33:22,004 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:33:22,006 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 22:33:22,015 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:33:22,023 INFO L193 MainTranslator]: Completed translation [2018-11-09 22:33:22,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22 WrapperNode [2018-11-09 22:33:22,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 22:33:22,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 22:33:22,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 22:33:22,024 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 22:33:22,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... [2018-11-09 22:33:22,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 22:33:22,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 22:33:22,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 22:33:22,042 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 22:33:22,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 [2018-11-09 22:33:22,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 22:33:22,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 22:33:22,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 22:33:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-09 22:33:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 22:33:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 22:33:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 22:33:22,253 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 22:33:22,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:22 BoogieIcfgContainer [2018-11-09 22:33:22,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 22:33:22,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 22:33:22,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 22:33:22,257 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 22:33:22,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:33:21" (1/3) ... [2018-11-09 22:33:22,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:33:22, skipping insertion in model container [2018-11-09 22:33:22,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:33:22" (2/3) ... [2018-11-09 22:33:22,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:33:22, skipping insertion in model container [2018-11-09 22:33:22,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:22" (3/3) ... [2018-11-09 22:33:22,260 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-09 22:33:22,267 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 22:33:22,274 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-09 22:33:22,284 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-09 22:33:22,304 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 22:33:22,305 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 22:33:22,305 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 22:33:22,305 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 22:33:22,306 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 22:33:22,306 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 22:33:22,306 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 22:33:22,306 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 22:33:22,306 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 22:33:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-09 22:33:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-09 22:33:22,326 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,327 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,329 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,334 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-11-09 22:33:22,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:33:22,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:33:22,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 22:33:22,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 22:33:22,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,461 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-09 22:33:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,503 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-09 22:33:22,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 22:33:22,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-09 22:33:22,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,511 INFO L225 Difference]: With dead ends: 36 [2018-11-09 22:33:22,511 INFO L226 Difference]: Without dead ends: 22 [2018-11-09 22:33:22,513 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 [2018-11-09 22:33:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-09 22:33:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-11-09 22:33:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-09 22:33:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-09 22:33:22,536 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 10 [2018-11-09 22:33:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,536 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-09 22:33:22,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 22:33:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-09 22:33:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-09 22:33:22,537 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,537 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,537 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash 409965092, now seen corresponding path program 1 times [2018-11-09 22:33:22,538 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:33:22,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-09 22:33:22,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 22:33:22,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 22:33:22,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,558 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-09 22:33:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,580 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-09 22:33:22,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 22:33:22,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-09 22:33:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,581 INFO L225 Difference]: With dead ends: 39 [2018-11-09 22:33:22,581 INFO L226 Difference]: Without dead ends: 24 [2018-11-09 22:33:22,582 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-09 22:33:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-09 22:33:22,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-09 22:33:22,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-09 22:33:22,586 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2018-11-09 22:33:22,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,586 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-09 22:33:22,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 22:33:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-09 22:33:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-09 22:33:22,587 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,587 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,587 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash -175989934, now seen corresponding path program 1 times [2018-11-09 22:33:22,588 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:33:22,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:33:22,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 22:33:22,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 22:33:22,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,617 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 3 states. [2018-11-09 22:33:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,628 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-11-09 22:33:22,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 22:33:22,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-09 22:33:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,629 INFO L225 Difference]: With dead ends: 24 [2018-11-09 22:33:22,629 INFO L226 Difference]: Without dead ends: 23 [2018-11-09 22:33:22,630 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 [2018-11-09 22:33:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-09 22:33:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-09 22:33:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-09 22:33:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-09 22:33:22,634 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2018-11-09 22:33:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,634 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-09 22:33:22,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 22:33:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-09 22:33:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-09 22:33:22,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,635 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,635 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,636 INFO L82 PathProgramCache]: Analyzing trace with hash -246154182, now seen corresponding path program 1 times [2018-11-09 22:33:22,636 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-09 22:33:22,665 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 [2018-11-09 22:33:22,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:33:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,724 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-09 22:33:22,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-09 22:33:22,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-09 22:33:22,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-09 22:33:22,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:33:22,725 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 4 states. [2018-11-09 22:33:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,763 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-09 22:33:22,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-09 22:33:22,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-09 22:33:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,764 INFO L225 Difference]: With dead ends: 30 [2018-11-09 22:33:22,764 INFO L226 Difference]: Without dead ends: 29 [2018-11-09 22:33:22,765 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-09 22:33:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-09 22:33:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-11-09 22:33:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-09 22:33:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-11-09 22:33:22,769 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 15 [2018-11-09 22:33:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,769 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-11-09 22:33:22,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-09 22:33:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-11-09 22:33:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-09 22:33:22,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,770 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,770 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,770 INFO L82 PathProgramCache]: Analyzing trace with hash -246153990, now seen corresponding path program 1 times [2018-11-09 22:33:22,771 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-09 22:33:22,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:33:22,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:33:22,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 22:33:22,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 22:33:22,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,794 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 3 states. [2018-11-09 22:33:22,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,826 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-09 22:33:22,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 22:33:22,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-09 22:33:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,827 INFO L225 Difference]: With dead ends: 43 [2018-11-09 22:33:22,827 INFO L226 Difference]: Without dead ends: 42 [2018-11-09 22:33:22,827 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 [2018-11-09 22:33:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-09 22:33:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-09 22:33:22,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-09 22:33:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-11-09 22:33:22,830 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 15 [2018-11-09 22:33:22,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,831 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-11-09 22:33:22,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 22:33:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-09 22:33:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-09 22:33:22,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,831 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,831 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash 959160962, now seen corresponding path program 1 times [2018-11-09 22:33:22,832 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-09 22:33:22,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:33:22,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:33:22,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-09 22:33:22,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-09 22:33:22,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-09 22:33:22,865 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states. [2018-11-09 22:33:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:22,876 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-11-09 22:33:22,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-09 22:33:22,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-09 22:33:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:22,877 INFO L225 Difference]: With dead ends: 40 [2018-11-09 22:33:22,877 INFO L226 Difference]: Without dead ends: 39 [2018-11-09 22:33:22,877 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 [2018-11-09 22:33:22,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-09 22:33:22,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-09 22:33:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-09 22:33:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-11-09 22:33:22,881 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 16 [2018-11-09 22:33:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:22,881 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-11-09 22:33:22,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-09 22:33:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-11-09 22:33:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-09 22:33:22,881 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:22,882 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:22,882 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:22,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1439622948, now seen corresponding path program 2 times [2018-11-09 22:33:22,882 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:22,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:22,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:22,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:33:22,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-09 22:33:22,939 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 [2018-11-09 22:33:22,945 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-09 22:33:22,950 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-09 22:33:22,950 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-09 22:33:22,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:33:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-09 22:33:22,985 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-09 22:33:22,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-09 22:33:22,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-09 22:33:22,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-09 22:33:22,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-09 22:33:22,986 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2018-11-09 22:33:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:23,042 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2018-11-09 22:33:23,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-09 22:33:23,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-09 22:33:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:23,044 INFO L225 Difference]: With dead ends: 57 [2018-11-09 22:33:23,044 INFO L226 Difference]: Without dead ends: 56 [2018-11-09 22:33:23,044 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-09 22:33:23,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-09 22:33:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 23. [2018-11-09 22:33:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-09 22:33:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-09 22:33:23,049 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2018-11-09 22:33:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:23,049 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-09 22:33:23,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-09 22:33:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-09 22:33:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-09 22:33:23,050 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:23,050 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:23,050 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:23,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:23,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1647973334, now seen corresponding path program 1 times [2018-11-09 22:33:23,051 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:23,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:23,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:23,052 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-09 22:33:23,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-09 22:33:23,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-09 22:33:23,078 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 [2018-11-09 22:33:23,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:23,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:33:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-09 22:33:23,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-09 22:33:23,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-09 22:33:23,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-09 22:33:23,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-09 22:33:23,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-09 22:33:23,121 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 6 states. [2018-11-09 22:33:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:23,195 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2018-11-09 22:33:23,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-09 22:33:23,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-09 22:33:23,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:23,196 INFO L225 Difference]: With dead ends: 45 [2018-11-09 22:33:23,196 INFO L226 Difference]: Without dead ends: 37 [2018-11-09 22:33:23,196 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-09 22:33:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-09 22:33:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-11-09 22:33:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-09 22:33:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-09 22:33:23,201 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 20 [2018-11-09 22:33:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:23,201 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-09 22:33:23,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-09 22:33:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-09 22:33:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-09 22:33:23,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:33:23,202 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:33:23,202 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-09 22:33:23,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:33:23,202 INFO L82 PathProgramCache]: Analyzing trace with hash -445083666, now seen corresponding path program 2 times [2018-11-09 22:33:23,202 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:33:23,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:33:23,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:23,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:33:23,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:33:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:33:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-09 22:33:23,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-09 22:33:23,255 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/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 [2018-11-09 22:33:23,265 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-09 22:33:23,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-09 22:33:23,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-09 22:33:23,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:33:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-11-09 22:33:23,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-09 22:33:23,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-09 22:33:23,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-09 22:33:23,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-09 22:33:23,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-09 22:33:23,326 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 7 states. [2018-11-09 22:33:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:33:23,370 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-09 22:33:23,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-09 22:33:23,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-11-09 22:33:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:33:23,371 INFO L225 Difference]: With dead ends: 49 [2018-11-09 22:33:23,371 INFO L226 Difference]: Without dead ends: 0 [2018-11-09 22:33:23,372 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-09 22:33:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-09 22:33:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-09 22:33:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-09 22:33:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 22:33:23,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-11-09 22:33:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:33:23,373 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:33:23,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-09 22:33:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-09 22:33:23,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 22:33:23,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-09 22:33:23,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-09 22:33:23,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-09 22:33:23,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-09 22:33:23,471 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-09 22:33:23,472 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2018-11-09 22:33:23,472 INFO L421 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (<= 0 main_~j~0)) (.cse1 (<= main_~n~0 2147483647)) (.cse2 (<= 0 main_~i~0)) (.cse3 (<= main_~m~0 2147483647))) (or (and .cse0 .cse1 .cse2 (<= 1 main_~m~0) (<= main_~i~0 2147483646) .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= (+ main_~j~0 1) main_~m~0)))) [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 27) no Hoare annotation was computed. [2018-11-09 22:33:23,473 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-09 22:33:23,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:33:23 BoogieIcfgContainer [2018-11-09 22:33:23,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 22:33:23,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 22:33:23,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 22:33:23,484 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 22:33:23,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:33:22" (3/4) ... [2018-11-09 22:33:23,486 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 22:33:23,491 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-09 22:33:23,491 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-09 22:33:23,494 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-09 22:33:23,494 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-09 22:33:23,494 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 22:33:23,495 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 22:33:23,523 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_88fb7e36-1894-4568-b207-3486066d6ad2/bin-2019/uautomizer/witness.graphml [2018-11-09 22:33:23,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 22:33:23,524 INFO L168 Benchmark]: Toolchain (without parser) took 1634.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 954.8 MB in the beginning and 971.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. [2018-11-09 22:33:23,525 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:33:23,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.37 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:33:23,525 INFO L168 Benchmark]: Boogie Preprocessor took 17.38 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:33:23,526 INFO L168 Benchmark]: RCFGBuilder took 211.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-11-09 22:33:23,526 INFO L168 Benchmark]: TraceAbstraction took 1229.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.5 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:33:23,526 INFO L168 Benchmark]: Witness Printer took 40.04 ms. Allocated memory is still 1.2 GB. Free memory was 974.5 MB in the beginning and 971.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-09 22:33:23,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.37 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.38 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 211.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1229.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.5 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. * Witness Printer took 40.04 ms. Allocated memory is still 1.2 GB. Free memory was 974.5 MB in the beginning and 971.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((0 <= j && n <= 2147483647) && 0 <= i) && 1 <= m) && i <= 2147483646) && m <= 2147483647) || ((((0 <= j && n <= 2147483647) && 0 <= i) && m <= 2147483647) && j + 1 <= m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 1.1s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 113 SDtfs, 100 SDslu, 108 SDs, 0 SdLazy, 112 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=5, 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, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 5 FomulaSimplifications, 525 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 242 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 12497 SizeOfPredicates, 2 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 81/170 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...