./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/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 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.24-91b1670 [2018-11-28 23:06:15,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:06:15,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:06:15,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:06:15,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:06:15,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:06:15,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:06:15,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:06:15,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:06:15,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:06:15,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:06:15,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:06:15,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:06:15,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:06:15,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:06:15,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:06:15,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:06:15,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:06:15,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:06:15,974 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:06:15,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:06:15,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:06:15,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:06:15,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:06:15,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:06:15,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:06:15,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:06:15,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:06:15,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:06:15,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:06:15,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:06:15,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:06:15,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:06:15,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:06:15,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:06:15,997 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:06:15,997 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:06:16,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:06:16,023 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:06:16,024 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:06:16,025 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:06:16,026 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:06:16,026 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:06:16,026 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:06:16,026 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:06:16,026 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:06:16,026 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:06:16,027 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:06:16,027 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:06:16,027 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:06:16,027 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:06:16,027 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:06:16,028 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:06:16,030 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:06:16,030 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:06:16,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:06:16,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:06:16,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:06:16,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:06:16,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:06:16,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:06:16,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:06:16,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:06:16,033 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:06:16,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:06:16,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:06:16,034 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2018-11-28 23:06:16,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:06:16,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:06:16,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:06:16,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:06:16,112 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:06:16,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:16,181 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249162183/90e14b63e90943c8bbe0d16115c2f059/FLAG0da0c50e9 [2018-11-28 23:06:16,600 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:06:16,601 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:16,610 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249162183/90e14b63e90943c8bbe0d16115c2f059/FLAG0da0c50e9 [2018-11-28 23:06:16,954 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249162183/90e14b63e90943c8bbe0d16115c2f059 [2018-11-28 23:06:16,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:06:16,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:06:16,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:16,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:06:16,964 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:06:16,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:16" (1/1) ... [2018-11-28 23:06:16,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38eb077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:16, skipping insertion in model container [2018-11-28 23:06:16,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:16" (1/1) ... [2018-11-28 23:06:16,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:06:16,992 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:06:17,148 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:17,152 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:06:17,171 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:17,186 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:06:17,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17 WrapperNode [2018-11-28 23:06:17,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:17,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:17,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:06:17,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:06:17,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:17,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:06:17,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:06:17,210 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:06:17,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... [2018-11-28 23:06:17,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:06:17,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:06:17,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:06:17,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:06:17,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:06:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:06:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:06:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 23:06:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 23:06:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-28 23:06:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-28 23:06:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:06:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:06:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:06:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:06:17,865 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:06:17,865 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 23:06:17,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:17 BoogieIcfgContainer [2018-11-28 23:06:17,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:06:17,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:06:17,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:06:17,873 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:06:17,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:16" (1/3) ... [2018-11-28 23:06:17,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20d09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:17, skipping insertion in model container [2018-11-28 23:06:17,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:17" (2/3) ... [2018-11-28 23:06:17,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20d09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:17, skipping insertion in model container [2018-11-28 23:06:17,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:17" (3/3) ... [2018-11-28 23:06:17,879 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:17,890 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:06:17,899 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-28 23:06:17,915 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-28 23:06:17,949 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:06:17,950 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:06:17,950 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:06:17,950 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:06:17,950 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:06:17,951 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:06:17,951 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:06:17,951 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:06:17,951 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:06:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 23:06:17,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:06:17,979 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:17,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:17,983 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:17,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:17,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-11-28 23:06:17,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:17,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:18,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:18,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:18,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:18,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:06:18,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:18,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:18,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:18,208 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-11-28 23:06:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:18,416 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-11-28 23:06:18,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:06:18,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 23:06:18,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:18,432 INFO L225 Difference]: With dead ends: 69 [2018-11-28 23:06:18,432 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 23:06:18,436 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 [2018-11-28 23:06:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 23:06:18,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-28 23:06:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 23:06:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-28 23:06:18,497 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-11-28 23:06:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:18,498 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-28 23:06:18,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-28 23:06:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:06:18,498 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:18,499 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:18,501 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:18,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:18,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-11-28 23:06:18,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:18,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:18,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:18,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:18,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:18,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:18,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:18,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:18,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:18,551 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-11-28 23:06:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:18,637 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-28 23:06:18,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:18,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:06:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:18,645 INFO L225 Difference]: With dead ends: 56 [2018-11-28 23:06:18,646 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 23:06:18,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 23:06:18,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-28 23:06:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 23:06:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-28 23:06:18,662 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-11-28 23:06:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:18,663 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-28 23:06:18,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-28 23:06:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 23:06:18,664 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:18,664 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:18,664 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:18,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:18,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-11-28 23:06:18,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:18,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:18,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:18,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:18,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:18,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 23:06:18,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 23:06:18,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:06:18,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:06:18,916 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-11-28 23:06:19,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:19,307 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-11-28 23:06:19,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:06:19,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-28 23:06:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:19,312 INFO L225 Difference]: With dead ends: 71 [2018-11-28 23:06:19,312 INFO L226 Difference]: Without dead ends: 69 [2018-11-28 23:06:19,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:06:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-28 23:06:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-11-28 23:06:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 23:06:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-28 23:06:19,331 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-11-28 23:06:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:19,332 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-28 23:06:19,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 23:06:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-28 23:06:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 23:06:19,333 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:19,333 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:19,334 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:19,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:19,334 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-11-28 23:06:19,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:19,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:19,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:19,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:06:19,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:19,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:06:19,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:19,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:19,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:19,397 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-28 23:06:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:19,517 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-11-28 23:06:19,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:06:19,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 23:06:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:19,521 INFO L225 Difference]: With dead ends: 81 [2018-11-28 23:06:19,521 INFO L226 Difference]: Without dead ends: 80 [2018-11-28 23:06:19,522 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 [2018-11-28 23:06:19,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-28 23:06:19,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-11-28 23:06:19,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 23:06:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-28 23:06:19,535 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-11-28 23:06:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:19,535 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-28 23:06:19,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-28 23:06:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:06:19,537 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:19,537 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] [2018-11-28 23:06:19,537 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:19,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:19,538 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-11-28 23:06:19,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:19,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:19,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:19,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:06:19,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:19,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:19,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:19,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:19,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:19,584 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-11-28 23:06:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:19,634 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-11-28 23:06:19,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:19,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 23:06:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:19,636 INFO L225 Difference]: With dead ends: 71 [2018-11-28 23:06:19,636 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 23:06:19,637 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:19,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 23:06:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-28 23:06:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-28 23:06:19,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-28 23:06:19,650 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-11-28 23:06:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:19,651 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-28 23:06:19,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-28 23:06:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 23:06:19,652 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:19,653 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] [2018-11-28 23:06:19,653 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:19,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:19,654 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-11-28 23:06:19,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:19,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:19,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:19,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:06:19,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:19,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:06:19,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:19,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:19,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:19,911 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-11-28 23:06:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:20,121 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-28 23:06:20,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:06:20,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 23:06:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:20,124 INFO L225 Difference]: With dead ends: 127 [2018-11-28 23:06:20,124 INFO L226 Difference]: Without dead ends: 66 [2018-11-28 23:06:20,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:06:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-28 23:06:20,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-28 23:06:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 23:06:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-28 23:06:20,147 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-11-28 23:06:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:20,148 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-28 23:06:20,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:20,148 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-28 23:06:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 23:06:20,149 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:20,149 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] [2018-11-28 23:06:20,150 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:20,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:20,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-11-28 23:06:20,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:20,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:20,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:20,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:06:20,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:20,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:06:20,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:20,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:20,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:20,232 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-11-28 23:06:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:20,314 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-28 23:06:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:06:20,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 23:06:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:20,316 INFO L225 Difference]: With dead ends: 76 [2018-11-28 23:06:20,316 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 23:06:20,317 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 [2018-11-28 23:06:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 23:06:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 23:06:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 23:06:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-11-28 23:06:20,329 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-11-28 23:06:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:20,330 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-11-28 23:06:20,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-11-28 23:06:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 23:06:20,331 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:20,331 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] [2018-11-28 23:06:20,333 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:20,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:20,334 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-11-28 23:06:20,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:20,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:20,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:20,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:06:20,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:20,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:06:20,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:20,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:20,411 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-11-28 23:06:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:20,532 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-28 23:06:20,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:06:20,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-28 23:06:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:20,534 INFO L225 Difference]: With dead ends: 79 [2018-11-28 23:06:20,534 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 23:06:20,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:06:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 23:06:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 23:06:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 23:06:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-11-28 23:06:20,556 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-11-28 23:06:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:20,557 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-11-28 23:06:20,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-11-28 23:06:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 23:06:20,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:20,561 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] [2018-11-28 23:06:20,562 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:20,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2013265909, now seen corresponding path program 1 times [2018-11-28 23:06:20,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:20,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:20,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:20,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-28 23:06:20,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:20,673 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:20,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:20,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-28 23:06:20,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:20,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-28 23:06:20,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:06:20,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:06:20,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:20,815 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 5 states. [2018-11-28 23:06:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:20,983 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-11-28 23:06:20,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:06:20,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-11-28 23:06:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:20,986 INFO L225 Difference]: With dead ends: 89 [2018-11-28 23:06:20,986 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 23:06:20,987 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 [2018-11-28 23:06:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 23:06:20,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2018-11-28 23:06:20,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-28 23:06:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2018-11-28 23:06:20,997 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 54 [2018-11-28 23:06:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:20,997 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2018-11-28 23:06:20,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:06:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2018-11-28 23:06:20,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 23:06:20,999 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:20,999 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] [2018-11-28 23:06:21,000 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:21,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:21,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1241624276, now seen corresponding path program 2 times [2018-11-28 23:06:21,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:21,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:21,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:21,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:21,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 23:06:21,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:21,095 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:21,120 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 23:06:21,151 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 23:06:21,151 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 23:06:21,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:21,163 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 23:06:21,189 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:21,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 23:06:21,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 23:06:21,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:06:21,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:06:21,190 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand 7 states. [2018-11-28 23:06:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:21,393 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2018-11-28 23:06:21,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:06:21,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-28 23:06:21,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:21,396 INFO L225 Difference]: With dead ends: 84 [2018-11-28 23:06:21,396 INFO L226 Difference]: Without dead ends: 82 [2018-11-28 23:06:21,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:06:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-28 23:06:21,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-11-28 23:06:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 23:06:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2018-11-28 23:06:21,407 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 38 [2018-11-28 23:06:21,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:21,408 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2018-11-28 23:06:21,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 23:06:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2018-11-28 23:06:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-28 23:06:21,410 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:21,411 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] [2018-11-28 23:06:21,411 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:21,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:21,412 INFO L82 PathProgramCache]: Analyzing trace with hash 859454554, now seen corresponding path program 1 times [2018-11-28 23:06:21,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:21,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:21,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:21,413 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:06:21,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-28 23:06:21,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:21,709 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:21,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:21,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-28 23:06:21,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:21,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-28 23:06:21,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 23:06:21,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 23:06:21,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 23:06:21,890 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand 10 states. [2018-11-28 23:06:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:22,257 INFO L93 Difference]: Finished difference Result 135 states and 167 transitions. [2018-11-28 23:06:22,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 23:06:22,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-11-28 23:06:22,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:22,261 INFO L225 Difference]: With dead ends: 135 [2018-11-28 23:06:22,261 INFO L226 Difference]: Without dead ends: 134 [2018-11-28 23:06:22,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:06:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-28 23:06:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2018-11-28 23:06:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-28 23:06:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2018-11-28 23:06:22,278 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 64 [2018-11-28 23:06:22,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:22,280 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2018-11-28 23:06:22,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 23:06:22,280 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2018-11-28 23:06:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-28 23:06:22,285 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:22,285 INFO L402 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 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] [2018-11-28 23:06:22,285 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:22,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:22,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1512424695, now seen corresponding path program 1 times [2018-11-28 23:06:22,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:22,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:22,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:22,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:22,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-28 23:06:22,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:22,458 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:22,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:22,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-28 23:06:22,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:22,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-28 23:06:22,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 23:06:22,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 23:06:22,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 23:06:22,690 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand 10 states. [2018-11-28 23:06:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:22,823 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2018-11-28 23:06:22,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 23:06:22,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-11-28 23:06:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:22,826 INFO L225 Difference]: With dead ends: 134 [2018-11-28 23:06:22,826 INFO L226 Difference]: Without dead ends: 133 [2018-11-28 23:06:22,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:06:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-28 23:06:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 107. [2018-11-28 23:06:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-28 23:06:22,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2018-11-28 23:06:22,841 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 73 [2018-11-28 23:06:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:22,841 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2018-11-28 23:06:22,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 23:06:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2018-11-28 23:06:22,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-28 23:06:22,843 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:22,844 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:22,844 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:22,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:22,845 INFO L82 PathProgramCache]: Analyzing trace with hash -179937736, now seen corresponding path program 1 times [2018-11-28 23:06:22,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:22,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:22,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:22,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:22,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-28 23:06:22,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:22,950 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:22,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:23,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-11-28 23:06:23,183 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:23,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 10 [2018-11-28 23:06:23,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 23:06:23,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 23:06:23,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 23:06:23,184 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand 10 states. [2018-11-28 23:06:23,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:23,435 INFO L93 Difference]: Finished difference Result 220 states and 278 transitions. [2018-11-28 23:06:23,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 23:06:23,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2018-11-28 23:06:23,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:23,438 INFO L225 Difference]: With dead ends: 220 [2018-11-28 23:06:23,438 INFO L226 Difference]: Without dead ends: 120 [2018-11-28 23:06:23,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-11-28 23:06:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-28 23:06:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2018-11-28 23:06:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-28 23:06:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2018-11-28 23:06:23,451 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 93 [2018-11-28 23:06:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:23,451 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2018-11-28 23:06:23,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 23:06:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2018-11-28 23:06:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-28 23:06:23,453 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:23,453 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] [2018-11-28 23:06:23,454 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:23,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:23,454 INFO L82 PathProgramCache]: Analyzing trace with hash 2130808540, now seen corresponding path program 1 times [2018-11-28 23:06:23,454 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:23,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:23,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:23,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:23,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 115 proven. 96 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2018-11-28 23:06:23,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:23,645 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:23,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:23,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 163 proven. 115 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-11-28 23:06:23,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:23,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 13 [2018-11-28 23:06:23,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 23:06:23,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 23:06:23,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-11-28 23:06:23,888 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 13 states. [2018-11-28 23:06:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:25,484 INFO L93 Difference]: Finished difference Result 263 states and 337 transitions. [2018-11-28 23:06:25,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 23:06:25,485 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 168 [2018-11-28 23:06:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:25,488 INFO L225 Difference]: With dead ends: 263 [2018-11-28 23:06:25,489 INFO L226 Difference]: Without dead ends: 155 [2018-11-28 23:06:25,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2018-11-28 23:06:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-11-28 23:06:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 144. [2018-11-28 23:06:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-28 23:06:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2018-11-28 23:06:25,503 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 168 [2018-11-28 23:06:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:25,503 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2018-11-28 23:06:25,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 23:06:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2018-11-28 23:06:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-28 23:06:25,506 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:25,506 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:25,507 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:25,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:25,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1590002633, now seen corresponding path program 2 times [2018-11-28 23:06:25,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:25,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:25,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 204 proven. 4 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-11-28 23:06:25,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:25,702 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:25,715 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 23:06:25,787 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 23:06:25,787 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 23:06:25,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 4 proven. 192 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-11-28 23:06:26,109 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:26,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-28 23:06:26,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 23:06:26,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 23:06:26,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 23:06:26,111 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 13 states. [2018-11-28 23:06:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:26,324 INFO L93 Difference]: Finished difference Result 144 states and 169 transitions. [2018-11-28 23:06:26,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:06:26,325 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 181 [2018-11-28 23:06:26,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:26,327 INFO L225 Difference]: With dead ends: 144 [2018-11-28 23:06:26,328 INFO L226 Difference]: Without dead ends: 142 [2018-11-28 23:06:26,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 23:06:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-11-28 23:06:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-11-28 23:06:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-11-28 23:06:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 164 transitions. [2018-11-28 23:06:26,346 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 164 transitions. Word has length 181 [2018-11-28 23:06:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:26,350 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 164 transitions. [2018-11-28 23:06:26,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 23:06:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 164 transitions. [2018-11-28 23:06:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-11-28 23:06:26,357 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:26,358 INFO L402 BasicCegarLoop]: trace histogram [30, 28, 22, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:26,359 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:26,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1101747503, now seen corresponding path program 1 times [2018-11-28 23:06:26,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:26,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:26,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:26,360 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:06:26,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:27,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 654 proven. 37 refuted. 0 times theorem prover too weak. 2485 trivial. 0 not checked. [2018-11-28 23:06:27,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:27,265 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:27,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:27,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 427 proven. 626 refuted. 0 times theorem prover too weak. 2123 trivial. 0 not checked. [2018-11-28 23:06:28,093 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:28,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 17 [2018-11-28 23:06:28,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 23:06:28,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 23:06:28,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-11-28 23:06:28,096 INFO L87 Difference]: Start difference. First operand 142 states and 164 transitions. Second operand 17 states. [2018-11-28 23:06:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:29,163 INFO L93 Difference]: Finished difference Result 341 states and 434 transitions. [2018-11-28 23:06:29,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-28 23:06:29,164 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 380 [2018-11-28 23:06:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:29,168 INFO L225 Difference]: With dead ends: 341 [2018-11-28 23:06:29,168 INFO L226 Difference]: Without dead ends: 210 [2018-11-28 23:06:29,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-11-28 23:06:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-11-28 23:06:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 190. [2018-11-28 23:06:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-28 23:06:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2018-11-28 23:06:29,185 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 380 [2018-11-28 23:06:29,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:29,186 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2018-11-28 23:06:29,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 23:06:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2018-11-28 23:06:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-28 23:06:29,189 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:29,189 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] [2018-11-28 23:06:29,190 INFO L423 AbstractCegarLoop]: === Iteration 17 === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:29,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:29,190 INFO L82 PathProgramCache]: Analyzing trace with hash -883454388, now seen corresponding path program 2 times [2018-11-28 23:06:29,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:29,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:29,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:29,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:29,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 208 proven. 6 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2018-11-28 23:06:29,469 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:06:29,469 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:06:29,479 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 23:06:29,537 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 23:06:29,537 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 23:06:29,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:06:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 6 proven. 196 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-11-28 23:06:29,808 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:06:29,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-28 23:06:29,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 23:06:29,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 23:06:29,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 23:06:29,810 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 13 states. [2018-11-28 23:06:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:29,929 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2018-11-28 23:06:29,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:06:29,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2018-11-28 23:06:29,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:29,931 INFO L225 Difference]: With dead ends: 190 [2018-11-28 23:06:29,932 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:06:29,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-28 23:06:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:06:29,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:06:29,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:06:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:06:29,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-11-28 23:06:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:29,935 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:06:29,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 23:06:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:06:29,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:06:29,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:06:29,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:29,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:29,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:06:30,638 WARN L180 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2018-11-28 23:06:30,902 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 16 [2018-11-28 23:06:31,051 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 11 [2018-11-28 23:06:31,368 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 19 [2018-11-28 23:06:31,372 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:06:31,372 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:31,372 INFO L448 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,372 INFO L448 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,372 INFO L448 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (or (and (<= f_~x |f_#in~x|) (<= |f_#in~x| f_~x) (<= 1 f_~x)) (< 2147483645 |f_#in~x|)) [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,373 INFO L444 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (and (or (and (<= |f_#t~ret0| 0) (<= f_~x |f_#in~x|) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x)) (< 2147483645 |f_#in~x|)) (<= 1 |f_#in~x|)) [2018-11-28 23:06:31,373 INFO L448 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,374 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 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))) [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L448 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,375 INFO L444 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (and (or (<= 3 |g_#in~x|) (<= 1 g_~x)) (or (and (<= g_~x |g_#in~x|) (<= 0 |g_#t~ret2|) (<= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (< 2147483647 |g_#in~x|))) [2018-11-28 23:06:31,376 INFO L448 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,376 INFO L448 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,376 INFO L448 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,376 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-11-28 23:06:31,376 INFO L448 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,376 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:31,377 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:06:31,377 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:06:31,377 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-11-28 23:06:31,377 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-28 23:06:31,377 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-11-28 23:06:31,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:31 BoogieIcfgContainer [2018-11-28 23:06:31,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:06:31,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:06:31,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:06:31,382 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:06:31,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:17" (3/4) ... [2018-11-28 23:06:31,386 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:06:31,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:06:31,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-28 23:06:31,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-11-28 23:06:31,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:06:31,400 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 23:06:31,400 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 23:06:31,400 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:06:31,455 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:06:31,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:06:31,456 INFO L168 Benchmark]: Toolchain (without parser) took 14497.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.5 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -70.5 MB). Peak memory consumption was 242.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:31,457 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:31,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.90 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:31,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.34 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:31,458 INFO L168 Benchmark]: Boogie Preprocessor took 31.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:31,458 INFO L168 Benchmark]: RCFGBuilder took 624.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:31,459 INFO L168 Benchmark]: TraceAbstraction took 13514.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.3 MB). Peak memory consumption was 271.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:31,460 INFO L168 Benchmark]: Witness Printer took 73.51 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:31,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.90 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 22.34 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 624.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13514.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.3 MB). Peak memory consumption was 271.7 MB. Max. memory is 11.5 GB. * Witness Printer took 73.51 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 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, 13.4s OverallTime, 17 OverallIterations, 30 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 605 SDtfs, 572 SDslu, 2452 SDs, 0 SdLazy, 1787 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1400 GetRequests, 1255 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred 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: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 128 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 233 PreInvPairs, 285 NumberOfFragments, 93 HoareAnnotationTreeSize, 233 FomulaSimplifications, 2349 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1345 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 2635 NumberOfCodeBlocks, 2635 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2609 ConstructedInterpolants, 0 QuantifiedInterpolants, 810817 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2442 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 9595/10992 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...