java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:33:00,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:33:00,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:33:00,898 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:33:00,899 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:33:00,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:33:00,904 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:33:00,906 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:33:00,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:33:00,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:33:00,912 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:33:00,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:33:00,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:33:00,917 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:33:00,918 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:33:00,919 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:33:00,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:33:00,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:33:00,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:33:00,935 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:33:00,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:33:00,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:33:00,946 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 22:33:00,959 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 22:33:00,987 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:33:00,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:33:00,989 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:33:00,989 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:33:00,989 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:33:00,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:33:00,991 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:33:00,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:33:00,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:33:00,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:33:00,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:33:00,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:33:00,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:33:00,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:33:00,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:33:00,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:33:00,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:33:00,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:33:00,994 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:33:00,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:33:00,995 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:33:00,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:33:00,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:33:00,995 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:33:00,996 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:33:00,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:33:00,996 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:33:00,996 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:33:01,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:33:01,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:33:01,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:33:01,089 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:33:01,090 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:33:01,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-10-26 22:33:01,165 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f57aad184/9742b4881dbe4457946990937191d494/FLAGb070bb457 [2018-10-26 22:33:01,631 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:33:01,632 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-10-26 22:33:01,638 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f57aad184/9742b4881dbe4457946990937191d494/FLAGb070bb457 [2018-10-26 22:33:01,652 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f57aad184/9742b4881dbe4457946990937191d494 [2018-10-26 22:33:01,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:33:01,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:33:01,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:33:01,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:33:01,669 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:33:01,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7d596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01, skipping insertion in model container [2018-10-26 22:33:01,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:33:01,704 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:33:01,882 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:33:01,886 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:33:01,904 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:33:01,921 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:33:01,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01 WrapperNode [2018-10-26 22:33:01,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:33:01,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:33:01,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:33:01,923 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:33:01,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:33:01,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:33:01,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:33:01,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:33:01,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... [2018-10-26 22:33:01,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:33:01,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:33:01,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:33:01,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:33:01,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:33:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:33:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:33:02,345 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:33:02,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:02 BoogieIcfgContainer [2018-10-26 22:33:02,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:33:02,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:33:02,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:33:02,362 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:33:02,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:33:01" (1/3) ... [2018-10-26 22:33:02,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397b8877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:02, skipping insertion in model container [2018-10-26 22:33:02,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:01" (2/3) ... [2018-10-26 22:33:02,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397b8877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:02, skipping insertion in model container [2018-10-26 22:33:02,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:02" (3/3) ... [2018-10-26 22:33:02,369 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008_true-unreach-call_true-termination.c.i [2018-10-26 22:33:02,388 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:33:02,398 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:33:02,418 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:33:02,459 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:33:02,460 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:33:02,460 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:33:02,460 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:33:02,460 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:33:02,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:33:02,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:33:02,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:33:02,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:33:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-10-26 22:33:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 22:33:02,484 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:33:02,485 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:33:02,487 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:33:02,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:33:02,494 INFO L82 PathProgramCache]: Analyzing trace with hash 179780108, now seen corresponding path program 1 times [2018-10-26 22:33:02,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:33:02,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:33:02,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:02,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:33:02,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:33:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:33:02,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:33:02,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:33:02,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:33:02,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:33:02,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:33:02,655 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2018-10-26 22:33:02,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:33:02,678 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-10-26 22:33:02,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:33:02,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-10-26 22:33:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:33:02,692 INFO L225 Difference]: With dead ends: 22 [2018-10-26 22:33:02,693 INFO L226 Difference]: Without dead ends: 10 [2018-10-26 22:33:02,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:33:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-26 22:33:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-26 22:33:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-26 22:33:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-26 22:33:02,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-10-26 22:33:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:33:02,731 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-26 22:33:02,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:33:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-26 22:33:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 22:33:02,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:33:02,732 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:33:02,732 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:33:02,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:33:02,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1270646224, now seen corresponding path program 1 times [2018-10-26 22:33:02,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:33:02,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:33:02,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:02,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:33:02,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:33:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:33:02,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:33:02,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:33:02,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:33:02,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:33:02,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:33:02,985 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2018-10-26 22:33:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:33:03,113 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-26 22:33:03,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 22:33:03,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-26 22:33:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:33:03,115 INFO L225 Difference]: With dead ends: 16 [2018-10-26 22:33:03,115 INFO L226 Difference]: Without dead ends: 12 [2018-10-26 22:33:03,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:33:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-26 22:33:03,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-26 22:33:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-26 22:33:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-26 22:33:03,120 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-10-26 22:33:03,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:33:03,120 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-26 22:33:03,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:33:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-26 22:33:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 22:33:03,121 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:33:03,122 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:33:03,122 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:33:03,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:33:03,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1368060298, now seen corresponding path program 1 times [2018-10-26 22:33:03,123 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:33:03,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:33:03,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:03,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:33:03,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:33:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:33:03,413 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-26 22:33:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:33:03,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:33:03,530 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:33:03,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:33:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:33:03,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:33:03,827 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 22:33:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:33:03,884 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:33:03,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-10-26 22:33:03,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:33:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:33:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:33:03,886 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2018-10-26 22:33:04,039 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-10-26 22:33:04,375 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-26 22:33:04,494 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-26 22:33:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:33:04,730 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-10-26 22:33:04,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:33:04,730 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2018-10-26 22:33:04,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:33:04,731 INFO L225 Difference]: With dead ends: 16 [2018-10-26 22:33:04,731 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:33:04,732 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-10-26 22:33:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:33:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:33:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:33:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:33:04,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-26 22:33:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:33:04,734 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:33:04,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:33:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:33:04,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:33:04,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:33:04,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:33:04,820 INFO L428 ceAbstractionStarter]: At program point L23(lines 10 24) the Hoare annotation is: true [2018-10-26 22:33:04,821 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-26 22:33:04,821 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 22:33:04,821 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-26 22:33:04,821 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 22:33:04,821 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-26 22:33:04,822 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:33:04,822 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-10-26 22:33:04,822 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~cnt~0)) (.cse1 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= ULTIMATE.start_main_~res~0 .cse1))) [2018-10-26 22:33:04,822 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-26 22:33:04,822 INFO L425 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2018-10-26 22:33:04,823 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 22:33:04,823 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-26 22:33:04,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:04 BoogieIcfgContainer [2018-10-26 22:33:04,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:33:04,837 INFO L168 Benchmark]: Toolchain (without parser) took 3173.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -703.6 MB). Peak memory consumption was 49.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:04,838 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:04,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:04,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:04,841 INFO L168 Benchmark]: Boogie Preprocessor took 21.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:04,841 INFO L168 Benchmark]: RCFGBuilder took 366.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:04,842 INFO L168 Benchmark]: TraceAbstraction took 2485.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:04,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 366.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2485.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 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: 18]: Loop Invariant Derived loop invariant: (res + cnt <= a + b && a + b <= res + cnt) && res <= a + b - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 14 SDslu, 26 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 22 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1967 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...