java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 02:32:19,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 02:32:19,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 02:32:19,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 02:32:19,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 02:32:19,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 02:32:19,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 02:32:19,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 02:32:19,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 02:32:19,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 02:32:19,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 02:32:19,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 02:32:19,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 02:32:19,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 02:32:19,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 02:32:19,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 02:32:19,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 02:32:19,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 02:32:19,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 02:32:19,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 02:32:19,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 02:32:19,556 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 02:32:19,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 02:32:19,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 02:32:19,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 02:32:19,558 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 02:32:19,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 02:32:19,558 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 02:32:19,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 02:32:19,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 02:32:19,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 02:32:19,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 02:32:19,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 02:32:19,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 02:32:19,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 02:32:19,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 02:32:19,560 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 02:32:19,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 02:32:19,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 02:32:19,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 02:32:19,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 02:32:19,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 02:32:19,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 02:32:19,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 02:32:19,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 02:32:19,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 02:32:19,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 02:32:19,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 02:32:19,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 02:32:19,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 02:32:19,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 02:32:19,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 02:32:19,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 02:32:19,611 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 02:32:19,612 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 02:32:19,613 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i [2019-09-08 02:32:19,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce01918e2/8e4bd344784e4849949a544e24bcf4df/FLAG9fb2c6fb6 [2019-09-08 02:32:20,127 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 02:32:20,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i [2019-09-08 02:32:20,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce01918e2/8e4bd344784e4849949a544e24bcf4df/FLAG9fb2c6fb6 [2019-09-08 02:32:20,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce01918e2/8e4bd344784e4849949a544e24bcf4df [2019-09-08 02:32:20,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 02:32:20,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 02:32:20,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 02:32:20,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 02:32:20,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 02:32:20,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b37f197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20, skipping insertion in model container [2019-09-08 02:32:20,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,546 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 02:32:20,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 02:32:20,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 02:32:20,741 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 02:32:20,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 02:32:20,769 INFO L192 MainTranslator]: Completed translation [2019-09-08 02:32:20,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20 WrapperNode [2019-09-08 02:32:20,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 02:32:20,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 02:32:20,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 02:32:20,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 02:32:20,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (1/1) ... [2019-09-08 02:32:20,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 02:32:20,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 02:32:20,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 02:32:20,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 02:32:20,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (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 [2019-09-08 02:32:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 02:32:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 02:32:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 02:32:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 02:32:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 02:32:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 02:32:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 02:32:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 02:32:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 02:32:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 02:32:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 02:32:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 02:32:21,113 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 02:32:21,114 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 02:32:21,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:32:21 BoogieIcfgContainer [2019-09-08 02:32:21,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 02:32:21,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 02:32:21,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 02:32:21,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 02:32:21,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 02:32:20" (1/3) ... [2019-09-08 02:32:21,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1932ecda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:32:21, skipping insertion in model container [2019-09-08 02:32:21,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:32:20" (2/3) ... [2019-09-08 02:32:21,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1932ecda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:32:21, skipping insertion in model container [2019-09-08 02:32:21,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:32:21" (3/3) ... [2019-09-08 02:32:21,139 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i [2019-09-08 02:32:21,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 02:32:21,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 02:32:21,206 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 02:32:21,247 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 02:32:21,248 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 02:32:21,248 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 02:32:21,249 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 02:32:21,249 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 02:32:21,249 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 02:32:21,249 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 02:32:21,249 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 02:32:21,250 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 02:32:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-09-08 02:32:21,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-08 02:32:21,274 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:32:21,275 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:32:21,278 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:32:21,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:32:21,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1995182865, now seen corresponding path program 1 times [2019-09-08 02:32:21,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:32:21,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:32:21,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:32:21,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:32:21,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:32:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:32:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 02:32:21,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 02:32:21,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 02:32:21,469 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 02:32:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 02:32:21,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 02:32:21,484 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2019-09-08 02:32:21,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:32:21,568 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-09-08 02:32:21,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 02:32:21,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-08 02:32:21,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:32:21,579 INFO L225 Difference]: With dead ends: 40 [2019-09-08 02:32:21,579 INFO L226 Difference]: Without dead ends: 13 [2019-09-08 02:32:21,583 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 02:32:21,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-08 02:32:21,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-08 02:32:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-08 02:32:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-08 02:32:21,619 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-08 02:32:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:32:21,619 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-08 02:32:21,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 02:32:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-08 02:32:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-08 02:32:21,620 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:32:21,620 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:32:21,621 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:32:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:32:21,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2146425897, now seen corresponding path program 1 times [2019-09-08 02:32:21,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:32:21,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:32:21,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:32:21,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:32:21,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:32:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:32:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 02:32:21,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 02:32:21,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 02:32:21,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 02:32:21,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 02:32:21,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-08 02:32:21,717 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-09-08 02:32:21,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:32:21,747 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-09-08 02:32:21,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 02:32:21,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-09-08 02:32:21,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:32:21,748 INFO L225 Difference]: With dead ends: 13 [2019-09-08 02:32:21,748 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 02:32:21,749 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 02:32:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 02:32:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 02:32:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 02:32:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 02:32:21,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-09-08 02:32:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:32:21,752 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 02:32:21,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 02:32:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 02:32:21,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 02:32:21,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 02:32:21,796 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 02:32:21,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 02:32:21,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 02:32:21,796 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 02:32:21,797 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 02:32:21,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 02:32:21,797 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2019-09-08 02:32:21,797 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed. [2019-09-08 02:32:21,797 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-09-08 02:32:21,798 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-09-08 02:32:21,798 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-09-08 02:32:21,798 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: (< 0 main_~y~0) [2019-09-08 02:32:21,798 INFO L439 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~y~0 0)) [2019-09-08 02:32:21,799 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed. [2019-09-08 02:32:21,799 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-08 02:32:21,799 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-08 02:32:21,800 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-08 02:32:21,800 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-08 02:32:21,800 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-08 02:32:21,800 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-08 02:32:21,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 02:32:21 BoogieIcfgContainer [2019-09-08 02:32:21,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 02:32:21,817 INFO L168 Benchmark]: Toolchain (without parser) took 1285.41 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 88.6 MB in the beginning and 125.8 MB in the end (delta: -37.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-09-08 02:32:21,818 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 02:32:21,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.36 ms. Allocated memory is still 132.6 MB. Free memory was 88.6 MB in the beginning and 79.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-08 02:32:21,820 INFO L168 Benchmark]: Boogie Preprocessor took 117.00 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 79.0 MB in the beginning and 175.1 MB in the end (delta: -96.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-08 02:32:21,821 INFO L168 Benchmark]: RCFGBuilder took 235.00 ms. Allocated memory is still 198.7 MB. Free memory was 175.1 MB in the beginning and 164.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-08 02:32:21,822 INFO L168 Benchmark]: TraceAbstraction took 690.92 ms. Allocated memory is still 198.7 MB. Free memory was 164.2 MB in the beginning and 125.8 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-09-08 02:32:21,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.36 ms. Allocated memory is still 132.6 MB. Free memory was 88.6 MB in the beginning and 79.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.00 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 79.0 MB in the beginning and 175.1 MB in the end (delta: -96.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 235.00 ms. Allocated memory is still 198.7 MB. Free memory was 175.1 MB in the beginning and 164.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 690.92 ms. Allocated memory is still 198.7 MB. Free memory was 164.2 MB in the beginning and 125.8 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 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: 16]: Loop Invariant Derived loop invariant: 0 < y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 11 SDslu, 79 SDs, 0 SdLazy, 25 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 15 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 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...