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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:42:02,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:42:02,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:42:02,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:42:02,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:42:02,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:42:02,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:42:02,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:42:02,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:42:02,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:42:02,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:42:02,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:42:02,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:42:02,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:42:02,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:42:02,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:42:02,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:42:02,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:42:02,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:42:02,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:42:02,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:42:02,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:42:02,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:42:02,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:42:02,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:42:02,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:42:02,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:42:02,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:42:02,553 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 [2019-10-07 13:42:02,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:42:02,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:42:02,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:42:02,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:42:02,591 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:42:02,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:42:02,592 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:42:02,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:42:02,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:42:02,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:42:02,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:42:02,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:42:02,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:42:02,593 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:42:02,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:42:02,597 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:42:02,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:42:02,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:42:02,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:42:02,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:42:02,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:42:02,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:42:02,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:42:02,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:42:02,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:42:02,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:42:02,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:42:02,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:42:02,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:42:02,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:42:02,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:42:02,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:42:02,928 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:42:02,929 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:42:02,929 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-10-07 13:42:03,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bc3de93/ea28513c10e044b89ca5da35a110ab3a/FLAG5c02565d6 [2019-10-07 13:42:03,438 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:42:03,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-10-07 13:42:03,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bc3de93/ea28513c10e044b89ca5da35a110ab3a/FLAG5c02565d6 [2019-10-07 13:42:03,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12bc3de93/ea28513c10e044b89ca5da35a110ab3a [2019-10-07 13:42:03,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:42:03,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:42:03,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:42:03,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:42:03,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:42:03,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:42:03" (1/1) ... [2019-10-07 13:42:03,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c78245d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:03, skipping insertion in model container [2019-10-07 13:42:03,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:42:03" (1/1) ... [2019-10-07 13:42:03,874 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:42:03,892 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:42:04,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:42:04,072 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:42:04,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:42:04,107 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:42:04,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04 WrapperNode [2019-10-07 13:42:04,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:42:04,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:42:04,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:42:04,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:42:04,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (1/1) ... [2019-10-07 13:42:04,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:42:04,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:42:04,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:42:04,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:42:04,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (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 [2019-10-07 13:42:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:42:04,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:42:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:42:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:42:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:42:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:42:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:42:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:42:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:42:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:42:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:42:04,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:42:04,445 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:42:04,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:42:04 BoogieIcfgContainer [2019-10-07 13:42:04,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:42:04,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:42:04,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:42:04,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:42:04,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:42:03" (1/3) ... [2019-10-07 13:42:04,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2198e5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:42:04, skipping insertion in model container [2019-10-07 13:42:04,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:42:04" (2/3) ... [2019-10-07 13:42:04,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2198e5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:42:04, skipping insertion in model container [2019-10-07 13:42:04,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:42:04" (3/3) ... [2019-10-07 13:42:04,468 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2019-10-07 13:42:04,492 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:42:04,506 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:42:04,523 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:42:04,566 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:42:04,566 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:42:04,567 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:42:04,567 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:42:04,567 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:42:04,567 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:42:04,567 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:42:04,567 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:42:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-07 13:42:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 13:42:04,593 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:42:04,594 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:42:04,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:42:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:42:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash 599047097, now seen corresponding path program 1 times [2019-10-07 13:42:04,613 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:42:04,613 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:04,613 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:04,614 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:42:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:42:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:04,746 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:04,747 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:42:04,747 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:42:04,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:42:04,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:42:04,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:42:04,765 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-10-07 13:42:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:42:04,808 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-10-07 13:42:04,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:42:04,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-07 13:42:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:42:04,819 INFO L225 Difference]: With dead ends: 32 [2019-10-07 13:42:04,819 INFO L226 Difference]: Without dead ends: 13 [2019-10-07 13:42:04,822 INFO L606 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 [2019-10-07 13:42:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-07 13:42:04,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-07 13:42:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-07 13:42:04,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-07 13:42:04,860 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-07 13:42:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:42:04,861 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-07 13:42:04,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:42:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-07 13:42:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 13:42:04,862 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:42:04,862 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:42:04,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:42:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:42:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 705782190, now seen corresponding path program 1 times [2019-10-07 13:42:04,864 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:42:04,864 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:04,864 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:04,864 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:42:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:42:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:05,100 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:05,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:42:05,101 INFO L95 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 [2019-10-07 13:42:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:42:05,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 13:42:05,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:42:05,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:42:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:05,363 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:42:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:05,449 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:42:05,476 INFO L162 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-10-07 13:42:05,476 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:42:05,483 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:42:05,492 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:42:05,493 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:42:05,552 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:42:05,932 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-07 13:42:05,955 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:42:05,959 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:42:05,959 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:42:05,960 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:42:05,960 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:42:05,960 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 133#true [2019-10-07 13:42:05,961 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:42:05,961 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 128#true [2019-10-07 13:42:05,961 INFO L193 IcfgInterpreter]: Reachable states at location L16-3 satisfy 104#(and (<= main_~hi~0 2000000) (not (< 0 main_~mid~0)) (<= main_~mid~0 1000000) (<= 0 main_~lo~0) (<= main_~mid~0 0) (<= 0 (+ main_~mid~0 1))) [2019-10-07 13:42:05,962 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 119#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:42:05,962 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 109#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0))) [2019-10-07 13:42:05,962 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~lo~0 0) (= 0 main_~lo~0) (<= main_~mid~0 2147483647) (<= 0 (+ main_~mid~0 2147483648)) (<= 0 main_~lo~0)) [2019-10-07 13:42:05,962 INFO L193 IcfgInterpreter]: Reachable states at location L16-2 satisfy 99#(or (and (<= main_~hi~0 2000000) (<= main_~mid~0 1000000) (<= 0 main_~lo~0) (<= 0 (+ main_~mid~0 1))) (and (<= main_~lo~0 0) (<= main_~hi~0 2000000) (<= 0 main_~mid~0) (= 0 main_~lo~0) (<= main_~mid~0 1000000) (<= 0 main_~hi~0) (<= main_~mid~0 2147483647) (< 0 main_~mid~0) (<= 0 (+ main_~mid~0 2147483648)) (= (* 2 main_~mid~0) main_~hi~0) (<= 0 main_~lo~0))) [2019-10-07 13:42:05,963 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 114#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-07 13:42:05,963 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 124#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:42:06,199 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:42:06,200 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 7] total 20 [2019-10-07 13:42:06,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-07 13:42:06,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-07 13:42:06,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-07 13:42:06,204 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 20 states. [2019-10-07 13:42:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:42:06,491 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-07 13:42:06,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 13:42:06,492 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 12 [2019-10-07 13:42:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:42:06,493 INFO L225 Difference]: With dead ends: 19 [2019-10-07 13:42:06,493 INFO L226 Difference]: Without dead ends: 14 [2019-10-07 13:42:06,494 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 13:42:06,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-07 13:42:06,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-07 13:42:06,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-07 13:42:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-07 13:42:06,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-10-07 13:42:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:42:06,499 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-07 13:42:06,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-07 13:42:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-07 13:42:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 13:42:06,500 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:42:06,500 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:42:06,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:42:06,713 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:42:06,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:42:06,713 INFO L82 PathProgramCache]: Analyzing trace with hash -280397223, now seen corresponding path program 2 times [2019-10-07 13:42:06,714 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:42:06,714 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:06,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:06,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:42:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:42:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:42:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 13:42:06,839 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:42:06,839 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:42:06,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:42:06,874 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-07 13:42:06,874 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 13:42:06,876 WARN L254 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-07 13:42:06,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:42:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:07,040 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:42:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:42:07,126 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:42:07,128 INFO L162 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-10-07 13:42:07,128 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:42:07,128 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:42:07,128 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:42:07,129 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:42:07,144 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:42:07,266 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-07 13:42:07,284 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:42:07,292 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:42:07,292 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:42:07,292 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:42:07,292 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:42:07,293 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 133#true [2019-10-07 13:42:07,293 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:42:07,293 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 128#true [2019-10-07 13:42:07,293 INFO L193 IcfgInterpreter]: Reachable states at location L16-3 satisfy 104#(and (<= main_~hi~0 2000000) (not (< 0 main_~mid~0)) (<= main_~mid~0 1000000) (<= 0 main_~lo~0) (<= main_~mid~0 0) (<= 0 (+ main_~mid~0 1))) [2019-10-07 13:42:07,294 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 119#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:42:07,294 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 109#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0))) [2019-10-07 13:42:07,294 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~lo~0 0) (= 0 main_~lo~0) (<= main_~mid~0 2147483647) (<= 0 (+ main_~mid~0 2147483648)) (<= 0 main_~lo~0)) [2019-10-07 13:42:07,295 INFO L193 IcfgInterpreter]: Reachable states at location L16-2 satisfy 99#(or (and (<= main_~hi~0 2000000) (<= main_~mid~0 1000000) (<= 0 main_~lo~0) (<= 0 (+ main_~mid~0 1))) (and (<= main_~lo~0 0) (<= main_~hi~0 2000000) (<= 0 main_~mid~0) (= 0 main_~lo~0) (<= main_~mid~0 1000000) (<= 0 main_~hi~0) (<= main_~mid~0 2147483647) (< 0 main_~mid~0) (<= 0 (+ main_~mid~0 2147483648)) (= (* 2 main_~mid~0) main_~hi~0) (<= 0 main_~lo~0))) [2019-10-07 13:42:07,295 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 114#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-07 13:42:07,295 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 124#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:42:07,527 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:42:07,528 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9, 7] total 23 [2019-10-07 13:42:07,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 13:42:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 13:42:07,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2019-10-07 13:42:07,530 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 23 states. [2019-10-07 13:42:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:42:07,843 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-10-07 13:42:07,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 13:42:07,844 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 13 [2019-10-07 13:42:07,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:42:07,844 INFO L225 Difference]: With dead ends: 16 [2019-10-07 13:42:07,844 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:42:07,845 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2019-10-07 13:42:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:42:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:42:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:42:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:42:07,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-07 13:42:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:42:07,847 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:42:07,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 13:42:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:42:07,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:42:08,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:42:08,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:42:08,161 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:42:08,161 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:42:08,162 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:42:08,162 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:42:08,162 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:42:08,162 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:42:08,162 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-10-07 13:42:08,162 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-10-07 13:42:08,163 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-07 13:42:08,163 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-07 13:42:08,163 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 2000000) (<= main_~hi~0 .cse0) (<= 0 main_~lo~0) (<= main_~lo~0 main_~hi~0))) [2019-10-07 13:42:08,163 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (and (<= main_~hi~0 2000000) (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0)) (<= 0 main_~lo~0) (<= main_~mid~0 0) (<= main_~lo~0 main_~hi~0)) [2019-10-07 13:42:08,163 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2019-10-07 13:42:08,164 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:42:08,164 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:42:08,164 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:42:08,164 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:42:08,165 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:42:08,165 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:42:08,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:42:08 BoogieIcfgContainer [2019-10-07 13:42:08,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:42:08,196 INFO L168 Benchmark]: Toolchain (without parser) took 4339.97 ms. Allocated memory was 139.5 MB in the beginning and 242.7 MB in the end (delta: 103.3 MB). Free memory was 104.3 MB in the beginning and 191.2 MB in the end (delta: -86.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,201 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.06 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,203 INFO L168 Benchmark]: Boogie Preprocessor took 119.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 94.8 MB in the beginning and 182.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,204 INFO L168 Benchmark]: RCFGBuilder took 218.35 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 170.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,205 INFO L168 Benchmark]: TraceAbstraction took 3742.31 ms. Allocated memory was 202.9 MB in the beginning and 242.7 MB in the end (delta: 39.8 MB). Free memory was 170.3 MB in the beginning and 191.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:42:08,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.06 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 94.8 MB in the beginning and 182.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.35 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 170.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3742.31 ms. Allocated memory was 202.9 MB in the beginning and 242.7 MB in the end (delta: 39.8 MB). Free memory was 170.3 MB in the beginning and 191.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 19.0 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: (((2 * mid + lo <= hi && hi <= 2000000) && hi <= 2 * mid + lo) && 0 <= lo) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 32 SDtfs, 25 SDslu, 152 SDs, 0 SdLazy, 155 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 46 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 49 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 189 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 5189 SizeOfPredicates, 8 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 655, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 48, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 26, TOOLS_POST_TIME[ms]: 31, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 8, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 40, TOOLS_QUANTIFIERELIM_TIME[ms]: 28, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 5, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 58, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 42, DOMAIN_JOIN_TIME[ms]: 313, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 8, DOMAIN_WIDEN_TIME[ms]: 180, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 25, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 4, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 382, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 381, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 10, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 11, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 10, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 124, DAG_COMPRESSION_RETAINED_NODES: 86, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...