./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:18:06,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:18:06,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:18:06,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:18:06,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:18:06,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:18:06,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:18:06,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:18:06,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:18:06,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:18:06,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:18:06,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:18:06,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:18:06,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:18:06,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:18:06,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:18:06,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:18:06,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:18:06,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:18:06,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:18:06,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:18:06,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:18:06,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:18:06,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:18:06,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:18:06,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:18:06,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:18:06,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:18:06,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:18:06,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:18:06,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:18:06,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:18:06,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:18:06,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:18:06,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:18:06,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:18:06,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:18:06,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:18:06,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:18:06,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:18:06,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:18:06,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 22:18:06,957 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:18:06,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:18:06,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:18:06,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:18:06,964 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:18:06,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:18:06,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:18:06,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:18:06,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:18:06,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:18:06,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:18:06,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:18:06,968 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 22:18:06,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:18:06,968 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:18:06,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:18:06,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:18:06,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:18:06,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:18:06,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:18:06,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:18:06,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:18:06,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:18:06,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:18:06,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:18:06,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:18:06,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:18:06,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2019-11-19 22:18:07,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:18:07,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:18:07,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:18:07,302 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:18:07,302 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:18:07,303 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 22:18:07,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4f08dc/5ab2654437234016908d78e544370a22/FLAGf1f041e9f [2019-11-19 22:18:07,765 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:18:07,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 22:18:07,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4f08dc/5ab2654437234016908d78e544370a22/FLAGf1f041e9f [2019-11-19 22:18:08,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f4f08dc/5ab2654437234016908d78e544370a22 [2019-11-19 22:18:08,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:18:08,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:18:08,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:08,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:18:08,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:18:08,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611a7384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08, skipping insertion in model container [2019-11-19 22:18:08,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,203 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:18:08,219 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:18:08,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:08,389 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:18:08,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:08,412 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:18:08,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08 WrapperNode [2019-11-19 22:18:08,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:08,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:08,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:18:08,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:18:08,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:08,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:18:08,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:18:08,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:18:08,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (1/1) ... [2019-11-19 22:18:08,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:18:08,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:18:08,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:18:08,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:18:08,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (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 [2019-11-19 22:18:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:18:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:18:08,718 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:18:08,719 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 22:18:08,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:08 BoogieIcfgContainer [2019-11-19 22:18:08,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:18:08,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:18:08,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:18:08,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:18:08,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:18:08" (1/3) ... [2019-11-19 22:18:08,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e0a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:18:08, skipping insertion in model container [2019-11-19 22:18:08,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:08" (2/3) ... [2019-11-19 22:18:08,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e0a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:18:08, skipping insertion in model container [2019-11-19 22:18:08,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:08" (3/3) ... [2019-11-19 22:18:08,726 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-19 22:18:08,733 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:18:08,737 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 22:18:08,747 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 22:18:08,771 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:18:08,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:18:08,772 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:18:08,772 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:18:08,772 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:18:08,772 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:18:08,773 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:18:08,773 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:18:08,785 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-19 22:18:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:18:08,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:08,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:18:08,791 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:08,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:08,797 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2019-11-19 22:18:08,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:08,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263355272] [2019-11-19 22:18:08,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:08,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263355272] [2019-11-19 22:18:08,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:08,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 22:18:08,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164113346] [2019-11-19 22:18:08,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:18:08,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:09,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:18:09,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:09,032 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-19 22:18:09,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:09,101 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-19 22:18:09,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:18:09,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 22:18:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:09,116 INFO L225 Difference]: With dead ends: 28 [2019-11-19 22:18:09,117 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 22:18:09,123 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:09,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 22:18:09,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-19 22:18:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 22:18:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-19 22:18:09,171 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-19 22:18:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:09,172 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-19 22:18:09,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:18:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-19 22:18:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:18:09,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:09,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:18:09,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:09,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:09,176 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-19 22:18:09,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:09,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974343270] [2019-11-19 22:18:09,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:09,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974343270] [2019-11-19 22:18:09,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:09,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:18:09,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046095918] [2019-11-19 22:18:09,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:18:09,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:09,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:18:09,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:18:09,254 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2019-11-19 22:18:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:09,316 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-11-19 22:18:09,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:18:09,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-19 22:18:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:09,319 INFO L225 Difference]: With dead ends: 11 [2019-11-19 22:18:09,319 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 22:18:09,320 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:18:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 22:18:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-19 22:18:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-19 22:18:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-19 22:18:09,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-11-19 22:18:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:09,327 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-19 22:18:09,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:18:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-19 22:18:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:18:09,327 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:09,328 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:18:09,329 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:09,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:09,330 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2019-11-19 22:18:09,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:09,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430466722] [2019-11-19 22:18:09,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:09,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430466722] [2019-11-19 22:18:09,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:09,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:18:09,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606005002] [2019-11-19 22:18:09,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:18:09,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:09,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:18:09,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:09,364 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-11-19 22:18:09,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:09,373 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-19 22:18:09,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:18:09,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 22:18:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:09,375 INFO L225 Difference]: With dead ends: 9 [2019-11-19 22:18:09,375 INFO L226 Difference]: Without dead ends: 8 [2019-11-19 22:18:09,375 INFO L630 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 [2019-11-19 22:18:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-19 22:18:09,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-19 22:18:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 22:18:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-19 22:18:09,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2019-11-19 22:18:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:09,379 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-19 22:18:09,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:18:09,380 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-19 22:18:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:18:09,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:09,381 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:18:09,381 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:09,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:09,382 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-19 22:18:09,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:09,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989122111] [2019-11-19 22:18:09,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:09,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989122111] [2019-11-19 22:18:09,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:09,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:18:09,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504781654] [2019-11-19 22:18:09,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:18:09,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:09,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:18:09,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:09,405 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-11-19 22:18:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:09,422 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-19 22:18:09,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:18:09,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 22:18:09,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:09,423 INFO L225 Difference]: With dead ends: 8 [2019-11-19 22:18:09,423 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:18:09,424 INFO L630 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 [2019-11-19 22:18:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:18:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:18:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:18:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:18:09,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-19 22:18:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:09,425 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:18:09,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:18:09,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:18:09,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:18:09,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:18:09,488 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 22:18:09,488 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:18:09,488 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-19 22:18:09,489 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= ULTIMATE.start_main_~j~0 2147483647) (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-19 22:18:09,489 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2019-11-19 22:18:09,489 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-19 22:18:09,489 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2019-11-19 22:18:09,489 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L440 ceAbstractionStarter]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-19 22:18:09,490 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-19 22:18:09,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:18:09 BoogieIcfgContainer [2019-11-19 22:18:09,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:18:09,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:18:09,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:18:09,512 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:18:09,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:08" (3/4) ... [2019-11-19 22:18:09,518 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:18:09,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:18:09,530 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:18:09,589 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:18:09,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:18:09,592 INFO L168 Benchmark]: Toolchain (without parser) took 1404.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -112.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:09,592 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:09,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:09,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:09,594 INFO L168 Benchmark]: Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:09,595 INFO L168 Benchmark]: RCFGBuilder took 196.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:09,596 INFO L168 Benchmark]: TraceAbstraction took 790.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:09,596 INFO L168 Benchmark]: Witness Printer took 77.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:09,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 89.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 196.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 790.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. * Witness Printer took 77.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 22]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((j <= 2147483647 && 1 <= i) && i <= 2147483647) && N <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 29 SDslu, 2 SDs, 0 SdLazy, 23 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 23 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...