/usr/bin/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:33:20,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:33:20,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:33:20,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 00:33:20,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:33:20,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:33:20,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:33:20,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:33:20,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:33:20,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:33:20,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:33:20,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:33:20,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:33:20,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:33:20,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:33:20,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:33:20,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:33:21,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:33:21,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:33:21,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:33:21,012 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 [2019-11-07 00:33:21,032 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:33:21,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:33:21,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:33:21,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:33:21,034 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:33:21,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:33:21,035 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:33:21,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:33:21,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:33:21,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:33:21,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:33:21,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:33:21,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:33:21,037 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:33:21,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:33:21,038 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:33:21,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:33:21,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:33:21,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:33:21,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:33:21,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:33:21,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:33:21,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:33:21,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:33:21,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:33:21,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:33:21,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:33:21,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:33:21,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:33:21,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:33:21,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:33:21,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:33:21,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:33:21,370 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:33:21,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2019-11-07 00:33:21,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ab71b56/bd1b32f3fd2a400890093828aaa5c192/FLAG3334a7a96 [2019-11-07 00:33:21,889 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:33:21,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2019-11-07 00:33:21,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ab71b56/bd1b32f3fd2a400890093828aaa5c192/FLAG3334a7a96 [2019-11-07 00:33:22,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ab71b56/bd1b32f3fd2a400890093828aaa5c192 [2019-11-07 00:33:22,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:33:22,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:33:22,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:22,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:33:22,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:33:22,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120a0594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22, skipping insertion in model container [2019-11-07 00:33:22,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,337 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:33:22,354 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:33:22,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:22,524 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:33:22,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:33:22,651 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:33:22,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22 WrapperNode [2019-11-07 00:33:22,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:33:22,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:33:22,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:33:22,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:33:22,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... [2019-11-07 00:33:22,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:33:22,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:33:22,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:33:22,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:33:22,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:33:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:33:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:33:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:33:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:33:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:33:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:33:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:33:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 00:33:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:33:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:33:23,023 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:33:23,024 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 00:33:23,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:23 BoogieIcfgContainer [2019-11-07 00:33:23,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:33:23,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:33:23,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:33:23,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:33:23,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:33:22" (1/3) ... [2019-11-07 00:33:23,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c02ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:23, skipping insertion in model container [2019-11-07 00:33:23,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:22" (2/3) ... [2019-11-07 00:33:23,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c02ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:23, skipping insertion in model container [2019-11-07 00:33:23,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:23" (3/3) ... [2019-11-07 00:33:23,050 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2019-11-07 00:33:23,060 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:33:23,068 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:33:23,077 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:33:23,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:33:23,100 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:33:23,100 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:33:23,100 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:33:23,100 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:33:23,100 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:33:23,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:33:23,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:33:23,115 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-07 00:33:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 00:33:23,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:23,121 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:23,123 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:23,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1079158542, now seen corresponding path program 1 times [2019-11-07 00:33:23,135 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:23,135 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763204841] [2019-11-07 00:33:23,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:23,377 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763204841] [2019-11-07 00:33:23,378 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:23,378 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:33:23,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624819619] [2019-11-07 00:33:23,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:33:23,384 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:23,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:33:23,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:33:23,398 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2019-11-07 00:33:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:23,547 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2019-11-07 00:33:23,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:33:23,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-07 00:33:23,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:23,559 INFO L225 Difference]: With dead ends: 56 [2019-11-07 00:33:23,559 INFO L226 Difference]: Without dead ends: 30 [2019-11-07 00:33:23,563 INFO L630 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 [2019-11-07 00:33:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-07 00:33:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2019-11-07 00:33:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-07 00:33:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-07 00:33:23,619 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2019-11-07 00:33:23,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:23,620 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-07 00:33:23,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:33:23,620 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-07 00:33:23,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-07 00:33:23,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:23,624 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:23,626 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:23,627 INFO L82 PathProgramCache]: Analyzing trace with hash -476045897, now seen corresponding path program 1 times [2019-11-07 00:33:23,627 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:23,627 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257989915] [2019-11-07 00:33:23,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:23,746 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257989915] [2019-11-07 00:33:23,747 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:33:23,747 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:33:23,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221512622] [2019-11-07 00:33:23,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:33:23,749 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:23,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:33:23,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:33:23,750 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 3 states. [2019-11-07 00:33:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:23,760 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-11-07 00:33:23,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:33:23,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-07 00:33:23,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:23,762 INFO L225 Difference]: With dead ends: 36 [2019-11-07 00:33:23,763 INFO L226 Difference]: Without dead ends: 26 [2019-11-07 00:33:23,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:33:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-07 00:33:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-07 00:33:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-07 00:33:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2019-11-07 00:33:23,772 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 13 [2019-11-07 00:33:23,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:23,772 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2019-11-07 00:33:23,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:33:23,773 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2019-11-07 00:33:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 00:33:23,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:33:23,774 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:33:23,774 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:33:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:23,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1393486425, now seen corresponding path program 1 times [2019-11-07 00:33:23,775 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:33:23,776 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63294223] [2019-11-07 00:33:23,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:33:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:24,085 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63294223] [2019-11-07 00:33:24,086 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687765639] [2019-11-07 00:33:24,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:33:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:33:24,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-07 00:33:24,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:33:24,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:24,337 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:33:24,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:33:24,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:33:24,498 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [377956019] [2019-11-07 00:33:24,503 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-11-07 00:33:24,545 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:33:24,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:33:24,613 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:33:24,615 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 23 variables. [2019-11-07 00:33:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:33:24,618 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:33:24,658 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:33:24,658 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:33:24,660 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-11-07 00:33:24,660 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:33:24,661 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:33:24,661 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 7, 7] total 14 [2019-11-07 00:33:24,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360556771] [2019-11-07 00:33:24,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:33:24,662 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:33:24,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:33:24,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:33:24,664 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 2 states. [2019-11-07 00:33:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:33:24,669 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-07 00:33:24,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:33:24,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-07 00:33:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:33:24,670 INFO L225 Difference]: With dead ends: 25 [2019-11-07 00:33:24,670 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:33:24,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:33:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:33:24,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:33:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:33:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:33:24,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-07 00:33:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:33:24,675 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:33:24,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:33:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:33:24,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:33:24,881 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:33:24,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:33:24,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:33:24,974 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:33:24,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:24,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:33:24,974 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:33:24,974 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:33:24,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 37) the Hoare annotation is: false [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 20 47) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L439 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: false [2019-11-07 00:33:24,975 INFO L439 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: false [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2019-11-07 00:33:24,975 INFO L439 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: false [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2019-11-07 00:33:24,975 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2019-11-07 00:33:24,976 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-11-07 00:33:24,976 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-11-07 00:33:24,976 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2019-11-07 00:33:24,976 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-07 00:33:24,976 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-11-07 00:33:24,976 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2019-11-07 00:33:24,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:33:24 BoogieIcfgContainer [2019-11-07 00:33:24,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:33:24,986 INFO L168 Benchmark]: Toolchain (without parser) took 2663.33 ms. Allocated memory was 145.8 MB in the beginning and 235.9 MB in the end (delta: 90.2 MB). Free memory was 103.5 MB in the beginning and 184.2 MB in the end (delta: -80.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,987 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.73 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 103.3 MB in the beginning and 181.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,989 INFO L168 Benchmark]: Boogie Preprocessor took 38.82 ms. Allocated memory is still 201.3 MB. Free memory was 181.4 MB in the beginning and 178.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,990 INFO L168 Benchmark]: RCFGBuilder took 340.89 ms. Allocated memory is still 201.3 MB. Free memory was 178.1 MB in the beginning and 163.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,991 INFO L168 Benchmark]: TraceAbstraction took 1949.66 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 163.1 MB in the beginning and 184.2 MB in the end (delta: -21.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:33:24,995 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.73 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 103.3 MB in the beginning and 181.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.82 ms. Allocated memory is still 201.3 MB. Free memory was 181.4 MB in the beginning and 178.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 340.89 ms. Allocated memory is still 201.3 MB. Free memory was 178.1 MB in the beginning and 163.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1949.66 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 163.1 MB in the beginning and 184.2 MB in the end (delta: -21.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 14 SDslu, 73 SDs, 0 SdLazy, 38 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 9 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 6305 SizeOfPredicates, 3 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 9/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 115, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9264705882352942, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9411764705882353, AVG_WEAKENED_CONJUNCTS: 0.35294117647058826, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...