./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.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_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/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 4c761fb15c9d367876fc9f1553874e9680fa1668 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:07:52,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:07:52,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:07:52,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:07:52,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:07:52,196 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:07:52,197 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:07:52,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:07:52,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:07:52,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:07:52,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:07:52,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:07:52,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:07:52,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:07:52,203 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:07:52,204 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:07:52,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:07:52,206 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:07:52,207 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:07:52,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:07:52,209 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:07:52,210 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:07:52,212 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:07:52,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:07:52,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:07:52,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:07:52,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:07:52,215 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:07:52,216 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:07:52,216 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:07:52,217 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:07:52,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:07:52,217 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:07:52,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:07:52,218 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:07:52,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:07:52,219 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 01:07:52,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:07:52,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:07:52,231 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:07:52,231 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:07:52,231 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:07:52,231 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:07:52,231 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:07:52,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:07:52,232 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:07:52,233 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:07:52,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:07:52,233 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:07:52,233 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:07:52,233 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:07:52,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:07:52,234 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:07:52,234 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:07:52,234 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:07:52,234 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:07:52,234 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:07:52,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:07:52,234 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_c13ca797-d803-4073-9f8d-d2ad2ee193f4/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 -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2018-11-23 01:07:52,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:07:52,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:07:52,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:07:52,274 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:07:52,274 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:07:52,275 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 01:07:52,319 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/data/b18ac8449/788d166a9ee84f729d831f1d93884ccf/FLAGa09b6e0d0 [2018-11-23 01:07:52,662 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:07:52,663 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 01:07:52,668 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/data/b18ac8449/788d166a9ee84f729d831f1d93884ccf/FLAGa09b6e0d0 [2018-11-23 01:07:52,681 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/data/b18ac8449/788d166a9ee84f729d831f1d93884ccf [2018-11-23 01:07:52,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:07:52,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:07:52,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:07:52,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:07:52,688 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:07:52,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50673b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52, skipping insertion in model container [2018-11-23 01:07:52,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:07:52,711 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:07:52,836 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:07:52,838 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:07:52,850 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:07:52,860 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:07:52,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52 WrapperNode [2018-11-23 01:07:52,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:07:52,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:07:52,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:07:52,861 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:07:52,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:07:52,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:07:52,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:07:52,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:07:52,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... [2018-11-23 01:07:52,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:07:52,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:07:52,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:07:52,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:07:52,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/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 01:07:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 01:07:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 01:07:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:07:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:07:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 01:07:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 01:07:53,117 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:07:53,117 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 01:07:53,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:53 BoogieIcfgContainer [2018-11-23 01:07:53,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:07:53,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:07:53,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:07:53,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:07:53,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:07:52" (1/3) ... [2018-11-23 01:07:53,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a0380a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:53, skipping insertion in model container [2018-11-23 01:07:53,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:52" (2/3) ... [2018-11-23 01:07:53,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a0380a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:53, skipping insertion in model container [2018-11-23 01:07:53,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:53" (3/3) ... [2018-11-23 01:07:53,125 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-23 01:07:53,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:07:53,137 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-23 01:07:53,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-23 01:07:53,182 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:07:53,183 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:07:53,183 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:07:53,183 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:07:53,183 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:07:53,183 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:07:53,183 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:07:53,184 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:07:53,184 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:07:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-23 01:07:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 01:07:53,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,202 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1587377884, now seen corresponding path program 1 times [2018-11-23 01:07:53,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,332 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 01:07:53,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 01:07:53,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 01:07:53,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:07:53,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:53,352 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-11-23 01:07:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:53,482 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2018-11-23 01:07:53,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:07:53,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-23 01:07:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:53,490 INFO L225 Difference]: With dead ends: 57 [2018-11-23 01:07:53,490 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 01:07:53,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 01:07:53,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2018-11-23 01:07:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 01:07:53,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-23 01:07:53,520 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 7 [2018-11-23 01:07:53,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:53,520 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-23 01:07:53,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 01:07:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-23 01:07:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 01:07:53,521 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,521 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,521 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1964074193, now seen corresponding path program 1 times [2018-11-23 01:07:53,522 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,566 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 01:07:53,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 01:07:53,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 01:07:53,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:07:53,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:53,568 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 4 states. [2018-11-23 01:07:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:53,693 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-11-23 01:07:53,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:07:53,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 01:07:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:53,694 INFO L225 Difference]: With dead ends: 51 [2018-11-23 01:07:53,694 INFO L226 Difference]: Without dead ends: 49 [2018-11-23 01:07:53,695 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-23 01:07:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2018-11-23 01:07:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 01:07:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-23 01:07:53,699 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 8 [2018-11-23 01:07:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:53,700 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-23 01:07:53,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 01:07:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-23 01:07:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 01:07:53,700 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,700 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,701 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,701 INFO L82 PathProgramCache]: Analyzing trace with hash 290934591, now seen corresponding path program 1 times [2018-11-23 01:07:53,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,732 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 01:07:53,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:53,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 01:07:53,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:07:53,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:53,733 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 4 states. [2018-11-23 01:07:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:53,774 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2018-11-23 01:07:53,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 01:07:53,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 01:07:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:53,775 INFO L225 Difference]: With dead ends: 64 [2018-11-23 01:07:53,775 INFO L226 Difference]: Without dead ends: 37 [2018-11-23 01:07:53,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-23 01:07:53,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2018-11-23 01:07:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 01:07:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-11-23 01:07:53,779 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 12 [2018-11-23 01:07:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:53,780 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-11-23 01:07:53,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 01:07:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-11-23 01:07:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 01:07:53,780 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,780 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,781 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,781 INFO L82 PathProgramCache]: Analyzing trace with hash 290934783, now seen corresponding path program 1 times [2018-11-23 01:07:53,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,810 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 01:07:53,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:53,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:07:53,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:07:53,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:53,811 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2018-11-23 01:07:53,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:53,883 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-11-23 01:07:53,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:07:53,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-23 01:07:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:53,884 INFO L225 Difference]: With dead ends: 54 [2018-11-23 01:07:53,884 INFO L226 Difference]: Without dead ends: 53 [2018-11-23 01:07:53,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 01:07:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-23 01:07:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2018-11-23 01:07:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-23 01:07:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-23 01:07:53,890 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 12 [2018-11-23 01:07:53,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:53,891 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-23 01:07:53,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:07:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-11-23 01:07:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 01:07:53,891 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,891 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,892 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,892 INFO L82 PathProgramCache]: Analyzing trace with hash 429043754, now seen corresponding path program 1 times [2018-11-23 01:07:53,892 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,908 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 01:07:53,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:07:53,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:07:53,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:07:53,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:07:53,909 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 3 states. [2018-11-23 01:07:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:53,931 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2018-11-23 01:07:53,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:07:53,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 01:07:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:53,932 INFO L225 Difference]: With dead ends: 46 [2018-11-23 01:07:53,932 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 01:07:53,932 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 01:07:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 01:07:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-23 01:07:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 01:07:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-11-23 01:07:53,936 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 13 [2018-11-23 01:07:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:53,936 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-11-23 01:07:53,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:07:53,937 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-11-23 01:07:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 01:07:53,937 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:53,937 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:53,937 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:53,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:53,938 INFO L82 PathProgramCache]: Analyzing trace with hash 464866939, now seen corresponding path program 1 times [2018-11-23 01:07:53,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:53,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:53,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:53,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:53,973 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 01:07:53,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:53,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:53,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:07:53,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:07:53,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:53,974 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 5 states. [2018-11-23 01:07:54,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:54,077 INFO L93 Difference]: Finished difference Result 95 states and 116 transitions. [2018-11-23 01:07:54,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 01:07:54,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 01:07:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:54,078 INFO L225 Difference]: With dead ends: 95 [2018-11-23 01:07:54,078 INFO L226 Difference]: Without dead ends: 94 [2018-11-23 01:07:54,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 01:07:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-11-23 01:07:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 81. [2018-11-23 01:07:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-11-23 01:07:54,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 105 transitions. [2018-11-23 01:07:54,087 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 105 transitions. Word has length 14 [2018-11-23 01:07:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:54,087 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 105 transitions. [2018-11-23 01:07:54,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:07:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2018-11-23 01:07:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 01:07:54,088 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:54,088 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:54,088 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:54,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:54,089 INFO L82 PathProgramCache]: Analyzing trace with hash 464867131, now seen corresponding path program 1 times [2018-11-23 01:07:54,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:54,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:54,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:54,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:54,126 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 01:07:54,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:54,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:54,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 01:07:54,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 01:07:54,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:54,127 INFO L87 Difference]: Start difference. First operand 81 states and 105 transitions. Second operand 4 states. [2018-11-23 01:07:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:54,161 INFO L93 Difference]: Finished difference Result 115 states and 146 transitions. [2018-11-23 01:07:54,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 01:07:54,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-23 01:07:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:54,162 INFO L225 Difference]: With dead ends: 115 [2018-11-23 01:07:54,163 INFO L226 Difference]: Without dead ends: 56 [2018-11-23 01:07:54,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 01:07:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-23 01:07:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2018-11-23 01:07:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-23 01:07:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-23 01:07:54,169 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 14 [2018-11-23 01:07:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:54,170 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-23 01:07:54,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 01:07:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-23 01:07:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 01:07:54,170 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:54,171 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:54,171 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:54,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:54,171 INFO L82 PathProgramCache]: Analyzing trace with hash -5811444, now seen corresponding path program 1 times [2018-11-23 01:07:54,171 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:54,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:54,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:54,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:07:54,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:54,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:54,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:07:54,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:07:54,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:54,207 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 5 states. [2018-11-23 01:07:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:54,268 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-11-23 01:07:54,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 01:07:54,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-23 01:07:54,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:54,270 INFO L225 Difference]: With dead ends: 62 [2018-11-23 01:07:54,270 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 01:07:54,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-23 01:07:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 01:07:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 01:07:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 01:07:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-11-23 01:07:54,274 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 15 [2018-11-23 01:07:54,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:54,275 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-11-23 01:07:54,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:07:54,275 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-23 01:07:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 01:07:54,275 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:54,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:54,276 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:54,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:54,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1525973288, now seen corresponding path program 1 times [2018-11-23 01:07:54,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:54,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:54,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:54,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:54,302 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 01:07:54,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:54,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:07:54,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:07:54,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:07:54,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:07:54,304 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 3 states. [2018-11-23 01:07:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:54,314 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-23 01:07:54,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:07:54,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 01:07:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:54,315 INFO L225 Difference]: With dead ends: 28 [2018-11-23 01:07:54,315 INFO L226 Difference]: Without dead ends: 27 [2018-11-23 01:07:54,315 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 01:07:54,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-23 01:07:54,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-23 01:07:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 01:07:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-23 01:07:54,318 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 15 [2018-11-23 01:07:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:54,318 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-23 01:07:54,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:07:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-23 01:07:54,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 01:07:54,319 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:07:54,319 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:07:54,319 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:07:54,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:07:54,320 INFO L82 PathProgramCache]: Analyzing trace with hash 60531715, now seen corresponding path program 1 times [2018-11-23 01:07:54,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:07:54,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:07:54,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:07:54,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:07:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:07:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:07:54,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:07:54,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 01:07:54,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 01:07:54,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 01:07:54,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 01:07:54,347 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 5 states. [2018-11-23 01:07:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:07:54,394 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2018-11-23 01:07:54,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 01:07:54,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-23 01:07:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:07:54,395 INFO L225 Difference]: With dead ends: 32 [2018-11-23 01:07:54,395 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 01:07:54,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-23 01:07:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 01:07:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 01:07:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 01:07:54,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:07:54,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-23 01:07:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:07:54,397 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:07:54,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 01:07:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:07:54,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:07:54,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 01:07:54,441 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 01:07:54,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:07:54,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:07:54,441 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 01:07:54,441 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 01:07:54,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2018-11-23 01:07:54,442 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647) (<= 0 main_~y~0) (<= 0 main_~x~0)) [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 01:07:54,443 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point L18-4(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point L18-5(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point L18-6(lines 18 24) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,444 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 01:07:54,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:07:54 BoogieIcfgContainer [2018-11-23 01:07:54,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:07:54,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:07:54,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:07:54,453 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:07:54,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:53" (3/4) ... [2018-11-23 01:07:54,456 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:07:54,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 01:07:54,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 01:07:54,465 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 01:07:54,465 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 01:07:54,465 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:07:54,504 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c13ca797-d803-4073-9f8d-d2ad2ee193f4/bin-2019/uautomizer/witness.graphml [2018-11-23 01:07:54,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:07:54,505 INFO L168 Benchmark]: Toolchain (without parser) took 1821.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 961.9 MB in the beginning and 970.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2018-11-23 01:07:54,507 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:07:54,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.19 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:07:54,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.45 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:07:54,508 INFO L168 Benchmark]: Boogie Preprocessor took 14.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:07:54,508 INFO L168 Benchmark]: RCFGBuilder took 225.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:07:54,509 INFO L168 Benchmark]: TraceAbstraction took 1334.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.7 MB in the end (delta: 155.1 MB). Peak memory consumption was 155.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:07:54,509 INFO L168 Benchmark]: Witness Printer took 51.31 ms. Allocated memory is still 1.2 GB. Free memory is still 970.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:07:54,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.19 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 15.45 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 225.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1334.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.7 MB in the end (delta: 155.1 MB). Peak memory consumption was 155.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.31 ms. Allocated memory is still 1.2 GB. Free memory is still 970.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && y <= 2147483647) && 0 <= y) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 8 error locations. SAFE Result, 1.2s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 130 SDtfs, 243 SDslu, 114 SDs, 0 SdLazy, 351 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 63 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 17 HoareAnnotationTreeSize, 5 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 3499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...