./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.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-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.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 df3ddc93bc6339292c9158119f1fdb949bb8842d .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:08:05,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:08:05,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:08:05,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:08:05,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:08:05,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:08:05,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:08:05,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:08:05,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:08:05,903 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:08:05,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:08:05,907 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:08:05,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:08:05,910 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:08:05,914 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:08:05,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:08:05,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:08:05,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:08:05,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:08:05,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:08:05,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:08:05,938 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:08:05,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:08:05,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:08:05,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:08:05,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:08:05,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:08:05,950 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:08:05,953 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:08:05,954 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:08:05,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:08:05,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:08:05,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:08:05,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:08:05,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:08:05,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:08:05,964 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:08:05,992 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:08:05,993 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:08:05,994 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:08:05,994 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:08:05,995 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:08:05,996 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:08:05,996 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:08:05,997 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:08:05,997 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:08:05,997 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:08:05,997 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:08:05,997 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:08:05,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:08:05,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:08:05,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:08:05,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:08:05,999 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:08:05,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:08:05,999 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:08:06,000 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:08:06,000 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:08:06,000 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:08:06,000 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:08:06,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:08:06,000 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 -> df3ddc93bc6339292c9158119f1fdb949bb8842d [2018-11-28 23:08:06,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:08:06,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:08:06,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:08:06,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:08:06,095 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:08:06,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-28 23:08:06,164 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499f1c069/993e8682984e489b94080dc70a577480/FLAG22078266d [2018-11-28 23:08:06,618 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:08:06,618 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-28 23:08:06,625 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499f1c069/993e8682984e489b94080dc70a577480/FLAG22078266d [2018-11-28 23:08:06,986 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499f1c069/993e8682984e489b94080dc70a577480 [2018-11-28 23:08:06,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:08:06,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:08:06,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:08:06,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:08:06,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:08:06,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:08:06" (1/1) ... [2018-11-28 23:08:07,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99a42d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:06, skipping insertion in model container [2018-11-28 23:08:07,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:08:06" (1/1) ... [2018-11-28 23:08:07,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:08:07,029 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:08:07,216 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:08:07,221 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:08:07,238 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:08:07,253 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:08:07,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07 WrapperNode [2018-11-28 23:08:07,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:08:07,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:08:07,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:08:07,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:08:07,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:08:07,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:08:07,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:08:07,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:08:07,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:08:07,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:08:07,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:08:07,304 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:08:07,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (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 23:08:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:08:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:08:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:08:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:08:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:08:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:08:07,712 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:08:07,713 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:08:07,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:07 BoogieIcfgContainer [2018-11-28 23:08:07,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:08:07,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:08:07,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:08:07,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:08:07,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:08:06" (1/3) ... [2018-11-28 23:08:07,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baaa708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:08:07, skipping insertion in model container [2018-11-28 23:08:07,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (2/3) ... [2018-11-28 23:08:07,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baaa708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:08:07, skipping insertion in model container [2018-11-28 23:08:07,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:07" (3/3) ... [2018-11-28 23:08:07,724 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-28 23:08:07,733 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:08:07,742 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:08:07,760 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:08:07,789 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:08:07,790 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:08:07,791 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:08:07,791 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:08:07,791 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:08:07,791 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:08:07,791 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:08:07,791 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:08:07,791 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:08:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-28 23:08:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:08:07,819 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:07,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:07,823 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:07,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:07,830 INFO L82 PathProgramCache]: Analyzing trace with hash 876558283, now seen corresponding path program 1 times [2018-11-28 23:08:07,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:07,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:07,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:07,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:07,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,037 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 23:08:08,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:08:08,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:08:08,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:08:08,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:08:08,079 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-28 23:08:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:08,240 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-28 23:08:08,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:08:08,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 23:08:08,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:08,254 INFO L225 Difference]: With dead ends: 30 [2018-11-28 23:08:08,254 INFO L226 Difference]: Without dead ends: 19 [2018-11-28 23:08:08,258 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 23:08:08,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-28 23:08:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-28 23:08:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-28 23:08:08,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-28 23:08:08,299 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2018-11-28 23:08:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:08,300 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-28 23:08:08,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:08:08,301 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-28 23:08:08,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:08:08,301 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:08,301 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:08,303 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:08,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:08,303 INFO L82 PathProgramCache]: Analyzing trace with hash 876558475, now seen corresponding path program 1 times [2018-11-28 23:08:08,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:08,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:08,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:08,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:08:08,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:08:08,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:08:08,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:08:08,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:08:08,335 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 3 states. [2018-11-28 23:08:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:08,395 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-11-28 23:08:08,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:08:08,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 23:08:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:08,397 INFO L225 Difference]: With dead ends: 19 [2018-11-28 23:08:08,397 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 23:08:08,398 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 23:08:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 23:08:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 23:08:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:08:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-28 23:08:08,403 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2018-11-28 23:08:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:08,403 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-28 23:08:08,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:08:08,403 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-28 23:08:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:08:08,405 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:08,405 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:08,405 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:08,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:08,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1403503047, now seen corresponding path program 1 times [2018-11-28 23:08:08,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:08,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:08,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:08,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,435 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 23:08:08,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:08:08,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:08:08,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:08:08,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:08:08,439 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2018-11-28 23:08:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:08,474 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-11-28 23:08:08,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:08:08,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:08:08,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:08,476 INFO L225 Difference]: With dead ends: 18 [2018-11-28 23:08:08,476 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 23:08:08,476 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 23:08:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 23:08:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 23:08:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:08:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-28 23:08:08,482 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2018-11-28 23:08:08,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:08,482 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-28 23:08:08,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:08:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-28 23:08:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:08:08,484 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:08,484 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:08,484 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:08,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:08,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1403509005, now seen corresponding path program 1 times [2018-11-28 23:08:08,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:08,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:08,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:08,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,548 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 23:08:08,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:08:08,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:08:08,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:08:08,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:08:08,550 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-28 23:08:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:08,607 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-28 23:08:08,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:08:08,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:08:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:08,609 INFO L225 Difference]: With dead ends: 17 [2018-11-28 23:08:08,609 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 23:08:08,611 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 23:08:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 23:08:08,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 23:08:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:08:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-28 23:08:08,620 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-11-28 23:08:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:08,621 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-28 23:08:08,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:08:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-28 23:08:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 23:08:08,621 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:08,622 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:08,624 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:08,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:08,624 INFO L82 PathProgramCache]: Analyzing trace with hash 430184192, now seen corresponding path program 1 times [2018-11-28 23:08:08,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:08,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:08,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:08,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:08:08,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:08:08,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:08:08,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:08:08,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:08:08,734 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2018-11-28 23:08:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:08,910 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2018-11-28 23:08:08,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:08:08,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 23:08:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:08,911 INFO L225 Difference]: With dead ends: 24 [2018-11-28 23:08:08,911 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:08:08,912 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:08:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:08:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:08:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:08:08,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:08:08,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-28 23:08:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:08,913 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:08:08,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:08:08,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:08:08,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:08:08,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:08:09,033 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,033 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,034 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,034 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,034 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,034 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,034 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-28 23:08:09,034 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2018-11-28 23:08:09,036 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-11-28 23:08:09,036 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 16 22) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648))) [2018-11-28 23:08:09,036 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 24) the Hoare annotation is: true [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-28 23:08:09,037 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 16 22) no Hoare annotation was computed. [2018-11-28 23:08:09,039 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 23:08:09,039 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-28 23:08:09,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:08:09 BoogieIcfgContainer [2018-11-28 23:08:09,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:08:09,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:08:09,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:08:09,055 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:08:09,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:07" (3/4) ... [2018-11-28 23:08:09,061 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:08:09,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:08:09,070 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:08:09,074 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 23:08:09,075 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 23:08:09,075 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:08:09,127 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:08:09,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:08:09,128 INFO L168 Benchmark]: Toolchain (without parser) took 2137.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -73.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,130 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,133 INFO L168 Benchmark]: Boogie Preprocessor took 25.64 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,133 INFO L168 Benchmark]: RCFGBuilder took 409.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,135 INFO L168 Benchmark]: TraceAbstraction took 1340.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,136 INFO L168 Benchmark]: Witness Printer took 72.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 23.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.64 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 409.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1340.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 11.5 GB. * Witness Printer took 72.08 ms. Allocated memory is still 1.1 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 1.2s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 18 SDslu, 22 SDs, 0 SdLazy, 63 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...