./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 9072a9376e1e28de1ef4dc11b7134f6f175023b7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:48:47,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:48:47,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:48:47,188 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:48:47,188 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:48:47,189 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:48:47,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:48:47,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:48:47,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:48:47,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:48:47,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:48:47,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:48:47,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:48:47,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:48:47,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:48:47,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:48:47,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:48:47,197 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:48:47,198 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:48:47,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:48:47,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:48:47,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:48:47,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:48:47,203 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:48:47,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:48:47,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:48:47,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:48:47,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:48:47,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:48:47,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:48:47,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:48:47,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:48:47,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:48:47,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:48:47,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:48:47,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:48:47,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 05:48:47,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:48:47,218 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:48:47,219 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:48:47,219 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:48:47,220 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:48:47,220 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:48:47,220 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:48:47,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:48:47,220 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 05:48:47,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:48:47,221 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:48:47,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:48:47,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:48:47,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:48:47,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:48:47,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:48:47,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:48:47,223 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:48:47,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:48:47,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:48:47,223 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 05:48:47,223 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:48:47,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:48:47,223 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_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 -> 9072a9376e1e28de1ef4dc11b7134f6f175023b7 [2018-11-23 05:48:47,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:48:47,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:48:47,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:48:47,255 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:48:47,255 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:48:47,255 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 05:48:47,290 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/data/3b2d44e59/305de094797940d58144f5e4bc8802c2/FLAG9b3db6241 [2018-11-23 05:48:47,678 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:48:47,679 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 05:48:47,682 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/data/3b2d44e59/305de094797940d58144f5e4bc8802c2/FLAG9b3db6241 [2018-11-23 05:48:47,694 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/data/3b2d44e59/305de094797940d58144f5e4bc8802c2 [2018-11-23 05:48:47,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:48:47,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:48:47,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:48:47,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:48:47,699 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:48:47,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12858536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47, skipping insertion in model container [2018-11-23 05:48:47,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:48:47,717 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:48:47,817 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:48:47,820 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:48:47,828 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:48:47,836 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:48:47,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47 WrapperNode [2018-11-23 05:48:47,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:48:47,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:48:47,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:48:47,837 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:48:47,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:48:47,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:48:47,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:48:47,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:48:47,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... [2018-11-23 05:48:47,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:48:47,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:48:47,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:48:47,862 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:48:47,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:48:47,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:48:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-23 05:48:47,937 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-23 05:48:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-23 05:48:47,938 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-23 05:48:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:48:47,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:48:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:48:47,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:48:48,093 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:48:48,093 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:48:48,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:48:48 BoogieIcfgContainer [2018-11-23 05:48:48,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:48:48,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:48:48,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:48:48,096 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:48:48,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:48:47" (1/3) ... [2018-11-23 05:48:48,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d32c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:48:48, skipping insertion in model container [2018-11-23 05:48:48,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:48:47" (2/3) ... [2018-11-23 05:48:48,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d32c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:48:48, skipping insertion in model container [2018-11-23 05:48:48,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:48:48" (3/3) ... [2018-11-23 05:48:48,099 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 05:48:48,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:48:48,114 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-23 05:48:48,128 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-23 05:48:48,153 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:48:48,154 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:48:48,154 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:48:48,154 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:48:48,154 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:48:48,155 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:48:48,155 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:48:48,155 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:48:48,155 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:48:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-23 05:48:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 05:48:48,176 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,179 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-11-23 05:48:48,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:48:48,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:48:48,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:48,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:48,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:48,329 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-11-23 05:48:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,426 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-11-23 05:48:48,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:48:48,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-23 05:48:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,437 INFO L225 Difference]: With dead ends: 69 [2018-11-23 05:48:48,437 INFO L226 Difference]: Without dead ends: 60 [2018-11-23 05:48:48,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:48,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-23 05:48:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-23 05:48:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-23 05:48:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-23 05:48:48,473 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-11-23 05:48:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,473 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-23 05:48:48,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-23 05:48:48,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 05:48:48,474 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,474 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,475 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-11-23 05:48:48,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:48:48,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 05:48:48,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 05:48:48,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 05:48:48,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:48:48,497 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-11-23 05:48:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,523 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-23 05:48:48,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 05:48:48,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 05:48:48,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,526 INFO L225 Difference]: With dead ends: 56 [2018-11-23 05:48:48,526 INFO L226 Difference]: Without dead ends: 54 [2018-11-23 05:48:48,527 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:48:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-23 05:48:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-23 05:48:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-23 05:48:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-23 05:48:48,534 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-11-23 05:48:48,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,534 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-23 05:48:48,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 05:48:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-23 05:48:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 05:48:48,535 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,535 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,535 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-11-23 05:48:48,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:48:48,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:48:48,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:48:48,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:48:48,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:48:48,609 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-11-23 05:48:48,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,697 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-11-23 05:48:48,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 05:48:48,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-23 05:48:48,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,698 INFO L225 Difference]: With dead ends: 71 [2018-11-23 05:48:48,698 INFO L226 Difference]: Without dead ends: 69 [2018-11-23 05:48:48,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 05:48:48,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-23 05:48:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-11-23 05:48:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-23 05:48:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-23 05:48:48,707 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-11-23 05:48:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,707 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-23 05:48:48,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:48:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-23 05:48:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 05:48:48,708 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,708 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,709 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-11-23 05:48:48,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 05:48:48,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:48:48,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:48,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:48,743 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-23 05:48:48,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,791 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-11-23 05:48:48,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:48:48,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-23 05:48:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,793 INFO L225 Difference]: With dead ends: 81 [2018-11-23 05:48:48,793 INFO L226 Difference]: Without dead ends: 80 [2018-11-23 05:48:48,794 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-23 05:48:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-11-23 05:48:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-23 05:48:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-23 05:48:48,800 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-11-23 05:48:48,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,800 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-23 05:48:48,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-23 05:48:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 05:48:48,801 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,801 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,801 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,802 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-11-23 05:48:48,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 05:48:48,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 05:48:48,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 05:48:48,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 05:48:48,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:48:48,818 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-11-23 05:48:48,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,842 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-11-23 05:48:48,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 05:48:48,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 05:48:48,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,844 INFO L225 Difference]: With dead ends: 71 [2018-11-23 05:48:48,844 INFO L226 Difference]: Without dead ends: 70 [2018-11-23 05:48:48,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:48:48,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-23 05:48:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-23 05:48:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-23 05:48:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-23 05:48:48,852 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-11-23 05:48:48,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,853 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-23 05:48:48,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 05:48:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-23 05:48:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 05:48:48,853 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,854 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,854 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,854 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-11-23 05:48:48,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 05:48:48,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:48:48,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:48,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:48,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:48,885 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-11-23 05:48:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:48,936 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-23 05:48:48,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:48:48,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-23 05:48:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:48,938 INFO L225 Difference]: With dead ends: 127 [2018-11-23 05:48:48,938 INFO L226 Difference]: Without dead ends: 66 [2018-11-23 05:48:48,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:48,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-23 05:48:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-23 05:48:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-23 05:48:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-23 05:48:48,945 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-11-23 05:48:48,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:48,945 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-23 05:48:48,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-23 05:48:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 05:48:48,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:48,947 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:48,947 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:48,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:48,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-11-23 05:48:48,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:48,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:48,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:48,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 05:48:48,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:48,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:48:48,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:48,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:48,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:48,978 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-11-23 05:48:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,010 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-23 05:48:49,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:48:49,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-23 05:48:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,011 INFO L225 Difference]: With dead ends: 76 [2018-11-23 05:48:49,011 INFO L226 Difference]: Without dead ends: 75 [2018-11-23 05:48:49,012 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-23 05:48:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-23 05:48:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-23 05:48:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-11-23 05:48:49,018 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-11-23 05:48:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,018 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-11-23 05:48:49,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-11-23 05:48:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 05:48:49,019 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,019 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,019 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-11-23 05:48:49,020 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 05:48:49,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:48:49,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:48:49,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:49,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:49,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:49,053 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-11-23 05:48:49,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,095 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-23 05:48:49,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:48:49,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-23 05:48:49,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,096 INFO L225 Difference]: With dead ends: 79 [2018-11-23 05:48:49,096 INFO L226 Difference]: Without dead ends: 75 [2018-11-23 05:48:49,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-23 05:48:49,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-23 05:48:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-23 05:48:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-11-23 05:48:49,103 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-11-23 05:48:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,103 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-11-23 05:48:49,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-11-23 05:48:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-23 05:48:49,104 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,104 INFO L402 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,105 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2013265909, now seen corresponding path program 1 times [2018-11-23 05:48:49,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-23 05:48:49,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:49,142 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:49,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-23 05:48:49,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:49,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-23 05:48:49,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:48:49,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:48:49,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:48:49,224 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 5 states. [2018-11-23 05:48:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,262 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-11-23 05:48:49,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:48:49,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-11-23 05:48:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,263 INFO L225 Difference]: With dead ends: 89 [2018-11-23 05:48:49,263 INFO L226 Difference]: Without dead ends: 88 [2018-11-23 05:48:49,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:48:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-23 05:48:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2018-11-23 05:48:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-23 05:48:49,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2018-11-23 05:48:49,271 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 54 [2018-11-23 05:48:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,271 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2018-11-23 05:48:49,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:48:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2018-11-23 05:48:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 05:48:49,272 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,273 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,273 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1241624276, now seen corresponding path program 2 times [2018-11-23 05:48:49,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:48:49,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:49,317 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:49,323 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 05:48:49,332 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 05:48:49,332 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 05:48:49,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:48:49,356 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:49,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-23 05:48:49,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:48:49,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:48:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:48:49,357 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand 7 states. [2018-11-23 05:48:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,413 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2018-11-23 05:48:49,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:48:49,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-23 05:48:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,415 INFO L225 Difference]: With dead ends: 84 [2018-11-23 05:48:49,415 INFO L226 Difference]: Without dead ends: 82 [2018-11-23 05:48:49,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-23 05:48:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-23 05:48:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-11-23 05:48:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-23 05:48:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2018-11-23 05:48:49,420 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 38 [2018-11-23 05:48:49,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,421 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2018-11-23 05:48:49,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:48:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2018-11-23 05:48:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-23 05:48:49,422 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,422 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,423 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,423 INFO L82 PathProgramCache]: Analyzing trace with hash 859454554, now seen corresponding path program 1 times [2018-11-23 05:48:49,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,424 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:48:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-23 05:48:49,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:49,514 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:49,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-23 05:48:49,582 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:49,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-23 05:48:49,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:48:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:48:49,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:48:49,583 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand 10 states. [2018-11-23 05:48:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,645 INFO L93 Difference]: Finished difference Result 135 states and 167 transitions. [2018-11-23 05:48:49,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 05:48:49,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-11-23 05:48:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,647 INFO L225 Difference]: With dead ends: 135 [2018-11-23 05:48:49,647 INFO L226 Difference]: Without dead ends: 134 [2018-11-23 05:48:49,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-23 05:48:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-23 05:48:49,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2018-11-23 05:48:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-23 05:48:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2018-11-23 05:48:49,656 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 64 [2018-11-23 05:48:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,656 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2018-11-23 05:48:49,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:48:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2018-11-23 05:48:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-23 05:48:49,657 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,659 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,659 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,659 INFO L82 PathProgramCache]: Analyzing trace with hash 873287445, now seen corresponding path program 1 times [2018-11-23 05:48:49,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-23 05:48:49,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:49,715 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:49,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-23 05:48:49,799 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:49,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-23 05:48:49,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:48:49,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:48:49,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:48:49,801 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand 10 states. [2018-11-23 05:48:49,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:49,852 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2018-11-23 05:48:49,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 05:48:49,852 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2018-11-23 05:48:49,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:49,853 INFO L225 Difference]: With dead ends: 134 [2018-11-23 05:48:49,853 INFO L226 Difference]: Without dead ends: 133 [2018-11-23 05:48:49,854 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-23 05:48:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-23 05:48:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 107. [2018-11-23 05:48:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-23 05:48:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2018-11-23 05:48:49,862 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 65 [2018-11-23 05:48:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:49,862 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2018-11-23 05:48:49,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:48:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2018-11-23 05:48:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-23 05:48:49,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:49,864 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:49,864 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:49,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:49,865 INFO L82 PathProgramCache]: Analyzing trace with hash 616341595, now seen corresponding path program 1 times [2018-11-23 05:48:49,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:49,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:49,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-23 05:48:49,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:49,906 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:49,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:49,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-23 05:48:50,002 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:50,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 10 [2018-11-23 05:48:50,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:48:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:48:50,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:48:50,003 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand 10 states. [2018-11-23 05:48:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:50,114 INFO L93 Difference]: Finished difference Result 218 states and 277 transitions. [2018-11-23 05:48:50,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 05:48:50,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2018-11-23 05:48:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:50,116 INFO L225 Difference]: With dead ends: 218 [2018-11-23 05:48:50,116 INFO L226 Difference]: Without dead ends: 118 [2018-11-23 05:48:50,117 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-11-23 05:48:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-23 05:48:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2018-11-23 05:48:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 05:48:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2018-11-23 05:48:50,124 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 85 [2018-11-23 05:48:50,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:50,124 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2018-11-23 05:48:50,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:48:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2018-11-23 05:48:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-23 05:48:50,126 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:50,126 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:50,127 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:50,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash -2006268357, now seen corresponding path program 1 times [2018-11-23 05:48:50,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:50,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:50,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:50,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:50,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 80 proven. 41 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-11-23 05:48:50,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:50,223 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:50,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:50,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 80 proven. 41 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-11-23 05:48:50,289 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:50,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-23 05:48:50,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 05:48:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 05:48:50,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-23 05:48:50,290 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand 11 states. [2018-11-23 05:48:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:50,454 INFO L93 Difference]: Finished difference Result 231 states and 292 transitions. [2018-11-23 05:48:50,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 05:48:50,455 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2018-11-23 05:48:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:50,455 INFO L225 Difference]: With dead ends: 231 [2018-11-23 05:48:50,455 INFO L226 Difference]: Without dead ends: 129 [2018-11-23 05:48:50,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-11-23 05:48:50,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-11-23 05:48:50,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2018-11-23 05:48:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-23 05:48:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2018-11-23 05:48:50,463 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 116 [2018-11-23 05:48:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:50,463 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2018-11-23 05:48:50,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 05:48:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2018-11-23 05:48:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-23 05:48:50,465 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:50,465 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 10, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:50,465 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:50,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2130808540, now seen corresponding path program 2 times [2018-11-23 05:48:50,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:50,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:50,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:50,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:50,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 115 proven. 96 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2018-11-23 05:48:50,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:50,574 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:50,581 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 05:48:50,609 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 05:48:50,609 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 05:48:50,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 28 proven. 154 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-11-23 05:48:50,809 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:50,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-11-23 05:48:50,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 05:48:50,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 05:48:50,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2018-11-23 05:48:50,810 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 21 states. [2018-11-23 05:48:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:51,301 INFO L93 Difference]: Finished difference Result 245 states and 312 transitions. [2018-11-23 05:48:51,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 05:48:51,301 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 168 [2018-11-23 05:48:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:51,302 INFO L225 Difference]: With dead ends: 245 [2018-11-23 05:48:51,302 INFO L226 Difference]: Without dead ends: 131 [2018-11-23 05:48:51,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=1412, Unknown=0, NotChecked=0, Total=1640 [2018-11-23 05:48:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-23 05:48:51,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2018-11-23 05:48:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-23 05:48:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-11-23 05:48:51,308 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 168 [2018-11-23 05:48:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:51,309 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-11-23 05:48:51,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 05:48:51,309 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-11-23 05:48:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-23 05:48:51,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:51,310 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 11, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:51,311 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:51,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:51,311 INFO L82 PathProgramCache]: Analyzing trace with hash 363877324, now seen corresponding path program 1 times [2018-11-23 05:48:51,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:51,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:51,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:51,312 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:48:51,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 88 proven. 163 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-11-23 05:48:51,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:51,418 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:51,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:51,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 88 proven. 163 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-11-23 05:48:51,518 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:51,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-23 05:48:51,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:48:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:48:51,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:48:51,519 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 10 states. [2018-11-23 05:48:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:51,645 INFO L93 Difference]: Finished difference Result 260 states and 325 transitions. [2018-11-23 05:48:51,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 05:48:51,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2018-11-23 05:48:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:51,647 INFO L225 Difference]: With dead ends: 260 [2018-11-23 05:48:51,648 INFO L226 Difference]: Without dead ends: 147 [2018-11-23 05:48:51,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-11-23 05:48:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-23 05:48:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 138. [2018-11-23 05:48:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-23 05:48:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2018-11-23 05:48:51,658 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 190 [2018-11-23 05:48:51,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:51,658 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2018-11-23 05:48:51,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:48:51,658 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2018-11-23 05:48:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-23 05:48:51,660 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:48:51,661 INFO L402 BasicCegarLoop]: trace histogram [18, 18, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:48:51,661 INFO L423 AbstractCegarLoop]: === Iteration 17 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 05:48:51,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:48:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash 673270991, now seen corresponding path program 2 times [2018-11-23 05:48:51,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:48:51,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:48:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:51,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:48:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:48:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:48:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 274 proven. 191 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2018-11-23 05:48:51,784 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:48:51,785 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/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 [2018-11-23 05:48:51,791 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 05:48:51,821 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 05:48:51,821 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 05:48:51,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:48:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 12 proven. 362 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2018-11-23 05:48:51,962 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:48:51,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 20 [2018-11-23 05:48:51,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 05:48:51,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 05:48:51,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2018-11-23 05:48:51,963 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 20 states. [2018-11-23 05:48:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:48:52,608 INFO L93 Difference]: Finished difference Result 339 states and 452 transitions. [2018-11-23 05:48:52,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-23 05:48:52,609 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 234 [2018-11-23 05:48:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:48:52,609 INFO L225 Difference]: With dead ends: 339 [2018-11-23 05:48:52,609 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:48:52,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=350, Invalid=2100, Unknown=0, NotChecked=0, Total=2450 [2018-11-23 05:48:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:48:52,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:48:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:48:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:48:52,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2018-11-23 05:48:52,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:48:52,612 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:48:52,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 05:48:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:48:52,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:48:52,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:48:52,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:48:52,950 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 05:48:52,950 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:48:52,950 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-11-23 05:48:52,950 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (let ((.cse0 (< 2147483645 |f_#in~x|))) (and (or (and (<= f_~x |f_#in~x|) (<= |f_#in~x| f_~x)) .cse0) (or (<= 1 f_~x) .cse0))) [2018-11-23 05:48:52,950 INFO L448 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L444 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse0 (< 2147483645 |f_#in~x|))) (and (or (and (<= f_~x |f_#in~x|) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x) (<= |f_#t~ret0| 0)) .cse0) (or (<= 1 f_~x) .cse0))) [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,951 INFO L448 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L444 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (let ((.cse0 (< 2147483647 |g_#in~x|))) (and (or (<= 1 g_~x) .cse0) (or (and (<= g_~x |g_#in~x|) (<= |g_#in~x| g_~x)) .cse0))) [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,952 INFO L448 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L444 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (or (and (<= g_~x |g_#in~x|) (<= 0 |g_#t~ret2|) (<= 1 g_~x) (<= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (< 2147483647 |g_#in~x|)) [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 05:48:52,953 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:48:52,953 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-11-23 05:48:52,953 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-11-23 05:48:52,954 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-23 05:48:52,954 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-23 05:48:52,954 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-11-23 05:48:52,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:48:52 BoogieIcfgContainer [2018-11-23 05:48:52,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:48:52,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:48:52,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:48:52,957 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:48:52,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:48:48" (3/4) ... [2018-11-23 05:48:52,960 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:48:52,965 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:48:52,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-23 05:48:52,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-11-23 05:48:52,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:48:52,969 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 05:48:52,970 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 05:48:52,970 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 05:48:53,000 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_817f1dfe-c77a-44b1-a83b-4e8c3b58e2aa/bin-2019/uautomizer/witness.graphml [2018-11-23 05:48:53,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:48:53,001 INFO L168 Benchmark]: Toolchain (without parser) took 5304.55 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 332.9 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 195.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:48:53,002 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:48:53,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.56 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:48:53,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:48:53,003 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:48:53,003 INFO L168 Benchmark]: RCFGBuilder took 231.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -199.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:48:53,003 INFO L168 Benchmark]: TraceAbstraction took 4862.35 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 169.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 217.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:48:53,004 INFO L168 Benchmark]: Witness Printer took 43.58 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:48:53,005 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.56 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -199.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4862.35 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 169.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 217.7 MB. Max. memory is 11.5 GB. * Witness Printer took 43.58 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 10 error locations. SAFE Result, 4.8s OverallTime, 17 OverallIterations, 18 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 569 SDtfs, 586 SDslu, 2220 SDs, 0 SdLazy, 2581 SolverSat, 241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1206 GetRequests, 1017 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=16, 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: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 121 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 326 PreInvPairs, 381 NumberOfFragments, 99 HoareAnnotationTreeSize, 326 FomulaSimplifications, 3045 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1083 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2181 NumberOfCodeBlocks, 2181 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2155 ConstructedInterpolants, 0 QuantifiedInterpolants, 512140 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2003 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 4596/5958 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...