./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.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 243aabcd2dba446bff3e5c5a4012e6e80ddc3b51 ............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 11:42:25,980 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 11:42:25,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 11:42:26,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 11:42:26,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 11:42:26,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 11:42:26,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 11:42:26,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 11:42:26,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 11:42:26,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 11:42:26,013 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 11:42:26,014 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 11:42:26,015 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 11:42:26,016 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 11:42:26,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 11:42:26,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 11:42:26,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 11:42:26,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 11:42:26,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 11:42:26,039 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 11:42:26,040 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 11:42:26,041 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 11:42:26,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 11:42:26,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 11:42:26,047 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 11:42:26,048 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 11:42:26,049 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 11:42:26,052 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 11:42:26,053 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 11:42:26,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 11:42:26,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 11:42:26,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 11:42:26,058 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 11:42:26,058 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 11:42:26,059 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 11:42:26,060 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 11:42:26,060 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 11:42:26,093 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 11:42:26,093 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 11:42:26,094 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 11:42:26,094 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 11:42:26,095 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 11:42:26,095 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 11:42:26,095 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 11:42:26,095 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 11:42:26,095 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 11:42:26,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 11:42:26,099 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 11:42:26,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 11:42:26,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 11:42:26,099 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 11:42:26,099 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 11:42:26,100 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 11:42:26,100 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 11:42:26,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 11:42:26,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 11:42:26,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 11:42:26,100 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 11:42:26,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 11:42:26,102 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 11:42:26,102 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 11:42:26,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 11:42:26,102 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 11:42:26,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 11:42:26,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 11:42:26,103 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 ! 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 -> 243aabcd2dba446bff3e5c5a4012e6e80ddc3b51 [2019-01-12 11:42:26,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 11:42:26,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 11:42:26,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 11:42:26,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 11:42:26,173 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 11:42:26,173 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-12 11:42:26,231 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03936c2b1/653c6acef5cc4efeaa9ec47d8f6c728a/FLAGcc62f2332 [2019-01-12 11:42:26,615 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 11:42:26,616 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-12 11:42:26,621 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03936c2b1/653c6acef5cc4efeaa9ec47d8f6c728a/FLAGcc62f2332 [2019-01-12 11:42:26,983 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03936c2b1/653c6acef5cc4efeaa9ec47d8f6c728a [2019-01-12 11:42:26,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 11:42:26,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 11:42:26,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 11:42:26,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 11:42:26,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 11:42:26,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:42:26" (1/1) ... [2019-01-12 11:42:26,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2d32c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:26, skipping insertion in model container [2019-01-12 11:42:26,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:42:26" (1/1) ... [2019-01-12 11:42:27,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 11:42:27,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 11:42:27,175 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:42:27,179 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 11:42:27,196 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:42:27,211 INFO L195 MainTranslator]: Completed translation [2019-01-12 11:42:27,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27 WrapperNode [2019-01-12 11:42:27,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 11:42:27,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 11:42:27,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 11:42:27,212 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 11:42:27,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 11:42:27,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 11:42:27,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 11:42:27,251 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 11:42:27,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (1/1) ... [2019-01-12 11:42:27,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 11:42:27,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 11:42:27,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 11:42:27,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 11:42:27,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (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 [2019-01-12 11:42:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 11:42:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 11:42:27,640 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 11:42:27,640 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 11:42:27,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:42:27 BoogieIcfgContainer [2019-01-12 11:42:27,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 11:42:27,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 11:42:27,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 11:42:27,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 11:42:27,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 11:42:26" (1/3) ... [2019-01-12 11:42:27,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a79cd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:42:27, skipping insertion in model container [2019-01-12 11:42:27,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:42:27" (2/3) ... [2019-01-12 11:42:27,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a79cd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:42:27, skipping insertion in model container [2019-01-12 11:42:27,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:42:27" (3/3) ... [2019-01-12 11:42:27,649 INFO L112 eAbstractionObserver]: Analyzing ICFG const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-12 11:42:27,659 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 11:42:27,666 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 11:42:27,682 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 11:42:27,711 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 11:42:27,712 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 11:42:27,712 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 11:42:27,712 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 11:42:27,712 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 11:42:27,712 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 11:42:27,712 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 11:42:27,712 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 11:42:27,713 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 11:42:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 11:42:27,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 11:42:27,732 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:42:27,733 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 11:42:27,735 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:42:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:42:27,741 INFO L82 PathProgramCache]: Analyzing trace with hash 925774290, now seen corresponding path program 1 times [2019-01-12 11:42:27,743 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:42:27,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:42:27,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:42:27,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:42:27,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:42:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:42:28,078 WARN L181 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2019-01-12 11:42:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:42:28,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:42:28,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 11:42:28,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 11:42:28,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 11:42:28,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 11:42:28,098 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-01-12 11:42:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:42:28,123 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2019-01-12 11:42:28,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 11:42:28,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-12 11:42:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:42:28,133 INFO L225 Difference]: With dead ends: 21 [2019-01-12 11:42:28,133 INFO L226 Difference]: Without dead ends: 7 [2019-01-12 11:42:28,136 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 11:42:28,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-12 11:42:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-12 11:42:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-12 11:42:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-01-12 11:42:28,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 6 [2019-01-12 11:42:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:42:28,169 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-01-12 11:42:28,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 11:42:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-01-12 11:42:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 11:42:28,169 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:42:28,170 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 11:42:28,170 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:42:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:42:28,170 INFO L82 PathProgramCache]: Analyzing trace with hash 925833872, now seen corresponding path program 1 times [2019-01-12 11:42:28,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:42:28,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:42:28,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:42:28,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:42:28,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:42:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:42:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:42:28,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:42:28,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 11:42:28,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 11:42:28,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 11:42:28,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 11:42:28,229 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2019-01-12 11:42:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:42:28,293 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2019-01-12 11:42:28,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 11:42:28,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-12 11:42:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:42:28,296 INFO L225 Difference]: With dead ends: 10 [2019-01-12 11:42:28,296 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 11:42:28,297 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:42:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 11:42:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 11:42:28,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 11:42:28,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 11:42:28,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-12 11:42:28,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:42:28,301 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 11:42:28,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 11:42:28,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 11:42:28,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 11:42:28,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 11:42:28,368 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 11:42:28,368 INFO L444 ceAbstractionStarter]: At program point L19(lines 9 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~s~0 (* 4294967296 (div ULTIMATE.start_main_~s~0 4294967296))) (<= 0 ULTIMATE.start_main_~s~0)) [2019-01-12 11:42:28,368 INFO L444 ceAbstractionStarter]: At program point L15(lines 11 18) the Hoare annotation is: (and (= ULTIMATE.start_main_~s~0 (* 4294967296 (div ULTIMATE.start_main_~s~0 4294967296))) (<= 0 ULTIMATE.start_main_~s~0)) [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 18) no Hoare annotation was computed. [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-12 11:42:28,369 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-01-12 11:42:28,370 INFO L448 ceAbstractionStarter]: For program point L12-2(lines 11 18) no Hoare annotation was computed. [2019-01-12 11:42:28,370 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-12 11:42:28,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 11:42:28 BoogieIcfgContainer [2019-01-12 11:42:28,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 11:42:28,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 11:42:28,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 11:42:28,385 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 11:42:28,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:42:27" (3/4) ... [2019-01-12 11:42:28,390 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 11:42:28,402 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 11:42:28,403 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:42:28,456 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 11:42:28,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 11:42:28,458 INFO L168 Benchmark]: Toolchain (without parser) took 1470.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-01-12 11:42:28,459 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-01-12 11:42:28,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.28 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:42:28,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.56 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:42:28,461 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:42:28,462 INFO L168 Benchmark]: RCFGBuilder took 363.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 11:42:28,463 INFO L168 Benchmark]: TraceAbstraction took 739.79 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-01-12 11:42:28,464 INFO L168 Benchmark]: Witness Printer took 73.98 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:42:28,469 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 222.28 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 38.56 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 363.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 739.79 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 73.98 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: 6.7 MB). Peak memory consumption was 6.7 MB. 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: 11]: Loop Invariant Derived loop invariant: s == 4294967296 * (s / 4294967296) && 0 <= s - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: s <= 4294967296 * (s / 4294967296) && 0 <= s - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 22 HoareAnnotationTreeSize, 2 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...