./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/loops-crafted-1/sumt7.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38325d458ef53aa3f44f6d408761e6717afacc9b ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:10:02,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:10:02,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:10:02,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:10:02,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:10:02,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:10:02,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:10:02,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:10:02,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:10:02,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:10:02,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:10:02,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:10:02,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:10:02,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:10:02,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:10:02,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:10:02,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:10:02,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:10:02,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:10:02,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:10:02,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:10:02,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:10:02,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:10:02,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:10:02,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:10:02,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:10:02,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:10:02,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:10:02,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:10:02,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:10:02,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:10:02,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:10:02,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:10:02,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:10:02,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:10:02,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:10:02,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:10:02,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:10:02,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:10:02,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:10:02,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:10:02,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:10:02,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:10:02,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:10:02,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:10:02,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:10:02,756 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:10:02,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:10:02,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:10:02,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:10:02,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:10:02,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:10:02,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:10:02,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:10:02,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:10:02,762 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:10:02,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:10:02,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:10:02,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:10:02,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:10:02,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:10:02,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:10:02,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:10:02,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:02,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:10:02,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:10:02,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:10:02,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:10:02,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:10:02,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:10:02,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:10:02,768 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38325d458ef53aa3f44f6d408761e6717afacc9b [2019-11-28 17:10:03,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:10:03,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:10:03,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:10:03,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:10:03,122 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:10:03,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt7.c [2019-11-28 17:10:03,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bb94f26/feabcde9c60e4ce398e34dcbff0fbc9d/FLAGc167adcf5 [2019-11-28 17:10:03,648 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:10:03,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt7.c [2019-11-28 17:10:03,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bb94f26/feabcde9c60e4ce398e34dcbff0fbc9d/FLAGc167adcf5 [2019-11-28 17:10:04,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bb94f26/feabcde9c60e4ce398e34dcbff0fbc9d [2019-11-28 17:10:04,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:10:04,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:10:04,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:04,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:10:04,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:10:04,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9aeaa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04, skipping insertion in model container [2019-11-28 17:10:04,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:10:04,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:10:04,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:04,342 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:10:04,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:04,397 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:10:04,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04 WrapperNode [2019-11-28 17:10:04,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:04,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:04,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:10:04,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:10:04,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:04,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:10:04,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:10:04,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:10:04,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (1/1) ... [2019-11-28 17:10:04,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:10:04,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:10:04,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:10:04,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:10:04,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (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 [2019-11-28 17:10:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:10:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:10:04,896 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:10:04,897 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:10:04,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:04 BoogieIcfgContainer [2019-11-28 17:10:04,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:10:04,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:10:04,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:10:04,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:10:04,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:10:04" (1/3) ... [2019-11-28 17:10:04,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c74514f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:04, skipping insertion in model container [2019-11-28 17:10:04,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:04" (2/3) ... [2019-11-28 17:10:04,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c74514f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:04, skipping insertion in model container [2019-11-28 17:10:04,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:04" (3/3) ... [2019-11-28 17:10:04,915 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt7.c [2019-11-28 17:10:04,928 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:10:04,937 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:10:04,961 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:10:04,993 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:10:04,993 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:10:04,993 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:10:04,994 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:10:04,994 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:10:04,994 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:10:04,994 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:10:04,994 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:10:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-28 17:10:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:10:05,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:05,016 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:05,016 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:05,023 INFO L82 PathProgramCache]: Analyzing trace with hash 183347083, now seen corresponding path program 1 times [2019-11-28 17:10:05,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:05,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334587468] [2019-11-28 17:10:05,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:05,353 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334587468] [2019-11-28 17:10:05,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:10:05,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:10:05,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125117172] [2019-11-28 17:10:05,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:10:05,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:05,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:10:05,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:05,376 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2019-11-28 17:10:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:05,603 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2019-11-28 17:10:05,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:10:05,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-28 17:10:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:05,613 INFO L225 Difference]: With dead ends: 43 [2019-11-28 17:10:05,613 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:10:05,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:10:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:10:05,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:10:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:10:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:10:05,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-28 17:10:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:05,642 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:10:05,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:10:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:10:05,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:10:05,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:10:05,705 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 17:10:05,705 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:10:05,705 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:10:05,705 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:10:05,705 INFO L246 CegarLoopResult]: For program point L28(lines 28 31) no Hoare annotation was computed. [2019-11-28 17:10:05,706 INFO L246 CegarLoopResult]: For program point L28-2(lines 18 31) no Hoare annotation was computed. [2019-11-28 17:10:05,707 INFO L246 CegarLoopResult]: For program point L24(lines 24 31) no Hoare annotation was computed. [2019-11-28 17:10:05,707 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:10:05,707 INFO L246 CegarLoopResult]: For program point L20(lines 20 31) no Hoare annotation was computed. [2019-11-28 17:10:05,708 INFO L246 CegarLoopResult]: For program point L16-2(lines 16 34) no Hoare annotation was computed. [2019-11-28 17:10:05,708 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:10:05,709 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 34) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-28 17:10:05,709 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:10:05,710 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 17:10:05,710 INFO L246 CegarLoopResult]: For program point L26(lines 26 31) no Hoare annotation was computed. [2019-11-28 17:10:05,710 INFO L246 CegarLoopResult]: For program point L22(lines 22 31) no Hoare annotation was computed. [2019-11-28 17:10:05,710 INFO L246 CegarLoopResult]: For program point L18(lines 18 31) no Hoare annotation was computed. [2019-11-28 17:10:05,710 INFO L242 CegarLoopResult]: At program point L35(lines 11 36) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-28 17:10:05,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:10:05 BoogieIcfgContainer [2019-11-28 17:10:05,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:10:05,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:10:05,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:10:05,730 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:10:05,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:04" (3/4) ... [2019-11-28 17:10:05,733 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:10:05,742 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 17:10:05,742 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:10:05,789 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:10:05,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:10:05,792 INFO L168 Benchmark]: Toolchain (without parser) took 1715.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -48.0 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,793 INFO L168 Benchmark]: CDTParser took 0.36 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. [2019-11-28 17:10:05,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,795 INFO L168 Benchmark]: Boogie Preprocessor took 42.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,796 INFO L168 Benchmark]: RCFGBuilder took 336.55 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,797 INFO L168 Benchmark]: TraceAbstraction took 828.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:05,797 INFO L168 Benchmark]: Witness Printer took 60.53 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. [2019-11-28 17:10:05,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 321.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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 119.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 336.55 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 828.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.53 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: v1 + v2 + i + v3 + v4 + k + j <= l && l <= v1 + v2 + i + v3 + v4 + k + j - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: v1 + v2 + i + v3 + v4 + k + j <= l && l <= v1 + v2 + i + v3 + v4 + k + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 77 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 42 HoareAnnotationTreeSize, 2 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...