./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 [2019-01-14 17:54:27,516 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:54:27,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:54:27,529 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:54:27,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:54:27,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:54:27,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:54:27,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:54:27,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:54:27,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:54:27,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:54:27,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:54:27,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:54:27,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:54:27,549 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:54:27,550 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:54:27,550 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:54:27,552 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:54:27,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:54:27,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:54:27,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:54:27,558 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:54:27,561 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:54:27,561 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:54:27,561 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:54:27,562 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:54:27,563 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:54:27,564 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:54:27,565 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:54:27,566 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:54:27,566 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:54:27,567 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:54:27,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:54:27,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:54:27,568 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:54:27,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:54:27,569 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:54:27,584 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:54:27,584 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:54:27,585 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:54:27,586 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:54:27,586 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:54:27,586 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:54:27,586 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:54:27,586 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:54:27,587 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:54:27,587 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:54:27,587 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:54:27,587 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:54:27,587 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:54:27,588 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:54:27,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:54:27,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:54:27,588 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:54:27,588 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:54:27,588 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:54:27,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:54:27,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:54:27,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:54:27,589 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:54:27,589 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:54:27,589 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:54:27,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:54:27,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:54:27,590 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 [2019-01-14 17:54:27,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:54:27,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:54:27,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:54:27,670 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:54:27,671 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:54:27,672 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-14 17:54:27,730 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16ef995e/325e4b4c3ad34bf89272ebca448b2b32/FLAG7f9beb66c [2019-01-14 17:54:28,110 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:54:28,110 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invariants/const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-14 17:54:28,116 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16ef995e/325e4b4c3ad34bf89272ebca448b2b32/FLAG7f9beb66c [2019-01-14 17:54:28,506 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16ef995e/325e4b4c3ad34bf89272ebca448b2b32 [2019-01-14 17:54:28,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:54:28,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:54:28,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:54:28,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:54:28,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:54:28,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ba1a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28, skipping insertion in model container [2019-01-14 17:54:28,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:54:28,541 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:54:28,729 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:54:28,736 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:54:28,752 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:54:28,764 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:54:28,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28 WrapperNode [2019-01-14 17:54:28,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:54:28,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:54:28,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:54:28,766 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:54:28,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:54:28,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:54:28,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:54:28,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:54:28,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (1/1) ... [2019-01-14 17:54:28,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:54:28,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:54:28,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:54:28,811 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:54:28,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (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 [2019-01-14 17:54:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:54:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:54:29,076 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:54:29,077 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:54:29,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:29 BoogieIcfgContainer [2019-01-14 17:54:29,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:54:29,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:54:29,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:54:29,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:54:29,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:54:28" (1/3) ... [2019-01-14 17:54:29,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e971b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:54:29, skipping insertion in model container [2019-01-14 17:54:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:28" (2/3) ... [2019-01-14 17:54:29,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e971b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:54:29, skipping insertion in model container [2019-01-14 17:54:29,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:29" (3/3) ... [2019-01-14 17:54:29,085 INFO L112 eAbstractionObserver]: Analyzing ICFG const_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2019-01-14 17:54:29,095 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:54:29,106 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:54:29,123 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:54:29,158 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:54:29,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:54:29,159 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:54:29,159 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:54:29,159 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:54:29,159 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:54:29,159 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:54:29,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:54:29,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:54:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-14 17:54:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:54:29,176 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:29,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:54:29,179 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:29,185 INFO L82 PathProgramCache]: Analyzing trace with hash 925774290, now seen corresponding path program 1 times [2019-01-14 17:54:29,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:29,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:29,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:29,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:29,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:29,519 WARN L181 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2019-01-14 17:54:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:29,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:54:29,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 17:54:29,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:54:29,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:54:29,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:54:29,545 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-01-14 17:54:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:29,575 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2019-01-14 17:54:29,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:54:29,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 17:54:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:29,586 INFO L225 Difference]: With dead ends: 21 [2019-01-14 17:54:29,586 INFO L226 Difference]: Without dead ends: 7 [2019-01-14 17:54:29,589 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:54:29,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-14 17:54:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-14 17:54:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-14 17:54:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-01-14 17:54:29,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 6 [2019-01-14 17:54:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:29,618 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-01-14 17:54:29,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:54:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-01-14 17:54:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:54:29,619 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:29,619 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:54:29,620 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:29,620 INFO L82 PathProgramCache]: Analyzing trace with hash 925833872, now seen corresponding path program 1 times [2019-01-14 17:54:29,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:29,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:29,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:29,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:29,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:29,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:54:29,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:54:29,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:54:29,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:54:29,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:54:29,690 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2019-01-14 17:54:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:29,773 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2019-01-14 17:54:29,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:54:29,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-14 17:54:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:29,775 INFO L225 Difference]: With dead ends: 10 [2019-01-14 17:54:29,775 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:54:29,776 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 [2019-01-14 17:54:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:54:29,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:54:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:54:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:54:29,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-14 17:54:29,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:29,778 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:54:29,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:54:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:54:29,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:54:29,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:54:29,858 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:54:29,859 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:54:29,859 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)) [2019-01-14 17:54:29,859 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)) [2019-01-14 17:54:29,859 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 18) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point L12-2(lines 11 18) no Hoare annotation was computed. [2019-01-14 17:54:29,860 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:54:29,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:54:29 BoogieIcfgContainer [2019-01-14 17:54:29,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:54:29,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:54:29,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:54:29,876 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:54:29,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:29" (3/4) ... [2019-01-14 17:54:29,881 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:54:29,889 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:54:29,889 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:54:29,933 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:54:29,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:54:29,934 INFO L168 Benchmark]: Toolchain (without parser) took 1424.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:29,935 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-14 17:54:29,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:29,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:29,937 INFO L168 Benchmark]: Boogie Preprocessor took 16.45 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:29,937 INFO L168 Benchmark]: RCFGBuilder took 267.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:29,938 INFO L168 Benchmark]: TraceAbstraction took 795.47 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:29,939 INFO L168 Benchmark]: Witness Printer took 58.56 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. [2019-01-14 17:54:29,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 254.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.96 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.45 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 267.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 795.47 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 58.56 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, 0.7s 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, 0.3s 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...