/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/vogal-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:28:36,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:28:36,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:28:36,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:28:36,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:28:36,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:28:36,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:28:36,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:28:36,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:28:36,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:28:36,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:28:36,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:28:36,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:28:36,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:28:36,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:28:36,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:28:36,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:28:36,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:28:36,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:28:36,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:28:36,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:28:36,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:28:36,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:28:36,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:28:36,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:28:36,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:28:36,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:28:36,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:28:36,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:28:36,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:28:36,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:28:36,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:28:36,780 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:28:36,780 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:28:36,780 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:28:36,781 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:28:36,781 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:28:36,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:28:36,781 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:28:36,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:28:36,783 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:28:36,783 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:28:36,783 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:28:36,783 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:28:36,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:28:36,785 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:28:36,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:28:36,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:28:36,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:28:36,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:28:36,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:28:36,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:28:36,786 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:28:36,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:28:36,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:28:36,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:28:36,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:28:36,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:28:36,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:28:36,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:28:36,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:28:36,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:28:36,789 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:28:36,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:28:36,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:28:36,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:28:36,791 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:28:37,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:28:37,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:28:37,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:28:37,090 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:28:37,090 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:28:37,091 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal-2.i [2019-11-24 04:28:37,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c2804d/def60486c9dc453fabdfdc1a22ed05fe/FLAG3462ed4ee [2019-11-24 04:28:37,607 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:28:37,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal-2.i [2019-11-24 04:28:37,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c2804d/def60486c9dc453fabdfdc1a22ed05fe/FLAG3462ed4ee [2019-11-24 04:28:38,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c2804d/def60486c9dc453fabdfdc1a22ed05fe [2019-11-24 04:28:38,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:28:38,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:28:38,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:38,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:28:38,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:28:38,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee337c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38, skipping insertion in model container [2019-11-24 04:28:38,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:28:38,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:28:38,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:38,306 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:28:38,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:38,454 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:28:38,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38 WrapperNode [2019-11-24 04:28:38,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:38,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:38,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:28:38,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:28:38,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:38,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:28:38,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:28:38,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:28:38,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (1/1) ... [2019-11-24 04:28:38,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:28:38,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:28:38,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:28:38,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:28:38,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (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 [2019-11-24 04:28:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 04:28:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:28:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:28:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 04:28:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 04:28:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:28:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 04:28:39,142 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:28:39,143 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-24 04:28:39,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:39 BoogieIcfgContainer [2019-11-24 04:28:39,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:28:39,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:28:39,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:28:39,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:28:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:28:38" (1/3) ... [2019-11-24 04:28:39,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfe5d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:39, skipping insertion in model container [2019-11-24 04:28:39,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:38" (2/3) ... [2019-11-24 04:28:39,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfe5d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:39, skipping insertion in model container [2019-11-24 04:28:39,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:39" (3/3) ... [2019-11-24 04:28:39,153 INFO L109 eAbstractionObserver]: Analyzing ICFG vogal-2.i [2019-11-24 04:28:39,168 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:28:39,176 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:28:39,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:28:39,211 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:28:39,211 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:28:39,211 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:28:39,211 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:28:39,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:28:39,212 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:28:39,212 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:28:39,212 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:28:39,229 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-24 04:28:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 04:28:39,236 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:39,237 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:39,238 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:39,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1529699898, now seen corresponding path program 1 times [2019-11-24 04:28:39,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:39,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170363418] [2019-11-24 04:28:39,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:39,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170363418] [2019-11-24 04:28:39,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:28:39,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:28:39,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468660190] [2019-11-24 04:28:39,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 04:28:39,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 04:28:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:28:39,433 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-24 04:28:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:39,456 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-11-24 04:28:39,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 04:28:39,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-24 04:28:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:39,469 INFO L225 Difference]: With dead ends: 28 [2019-11-24 04:28:39,469 INFO L226 Difference]: Without dead ends: 14 [2019-11-24 04:28:39,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:28:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-24 04:28:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-24 04:28:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-24 04:28:39,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2019-11-24 04:28:39,516 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 9 [2019-11-24 04:28:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:39,516 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-24 04:28:39,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 04:28:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2019-11-24 04:28:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-24 04:28:39,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:39,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:39,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:39,519 INFO L82 PathProgramCache]: Analyzing trace with hash 708827924, now seen corresponding path program 1 times [2019-11-24 04:28:39,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:39,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39989707] [2019-11-24 04:28:39,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:39,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39989707] [2019-11-24 04:28:39,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:28:39,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:28:39,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703776670] [2019-11-24 04:28:39,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:28:39,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:39,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:28:39,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:28:39,610 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand 3 states. [2019-11-24 04:28:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:39,670 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2019-11-24 04:28:39,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:28:39,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-24 04:28:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:39,672 INFO L225 Difference]: With dead ends: 36 [2019-11-24 04:28:39,672 INFO L226 Difference]: Without dead ends: 24 [2019-11-24 04:28:39,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:28:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-24 04:28:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2019-11-24 04:28:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-24 04:28:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-24 04:28:39,679 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 11 [2019-11-24 04:28:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:39,679 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-24 04:28:39,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:28:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-11-24 04:28:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 04:28:39,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:39,680 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:39,681 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash -325494678, now seen corresponding path program 1 times [2019-11-24 04:28:39,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:39,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430189448] [2019-11-24 04:28:39,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:39,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430189448] [2019-11-24 04:28:39,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367333392] [2019-11-24 04:28:39,788 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 [2019-11-24 04:28:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:39,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-24 04:28:39,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 04:28:39,912 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 04:28:39,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 04:28:39,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3] total 10 [2019-11-24 04:28:39,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787616695] [2019-11-24 04:28:39,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-24 04:28:39,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:39,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-24 04:28:39,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-24 04:28:39,981 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand 8 states. [2019-11-24 04:28:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:40,057 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-11-24 04:28:40,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:28:40,058 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-24 04:28:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:40,059 INFO L225 Difference]: With dead ends: 31 [2019-11-24 04:28:40,059 INFO L226 Difference]: Without dead ends: 27 [2019-11-24 04:28:40,072 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-24 04:28:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-24 04:28:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2019-11-24 04:28:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-24 04:28:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-11-24 04:28:40,079 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 12 [2019-11-24 04:28:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:40,079 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-24 04:28:40,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-24 04:28:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2019-11-24 04:28:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 04:28:40,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:40,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:40,287 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:40,292 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:40,292 INFO L82 PathProgramCache]: Analyzing trace with hash -980107374, now seen corresponding path program 1 times [2019-11-24 04:28:40,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:40,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29852790] [2019-11-24 04:28:40,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:28:40,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29852790] [2019-11-24 04:28:40,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140515680] [2019-11-24 04:28:40,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-24 04:28:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:40,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-24 04:28:40,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:28:40,476 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:28:40,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 04:28:40,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [3] total 8 [2019-11-24 04:28:40,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229158667] [2019-11-24 04:28:40,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:28:40,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:40,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:28:40,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-24 04:28:40,510 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand 6 states. [2019-11-24 04:28:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:40,598 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2019-11-24 04:28:40,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 04:28:40,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-24 04:28:40,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:40,602 INFO L225 Difference]: With dead ends: 52 [2019-11-24 04:28:40,602 INFO L226 Difference]: Without dead ends: 38 [2019-11-24 04:28:40,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-24 04:28:40,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-24 04:28:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2019-11-24 04:28:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 04:28:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-24 04:28:40,617 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 33 transitions. Word has length 15 [2019-11-24 04:28:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:40,618 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-24 04:28:40,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 04:28:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2019-11-24 04:28:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 04:28:40,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:40,622 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:40,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:40,828 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:40,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:40,829 INFO L82 PathProgramCache]: Analyzing trace with hash -142260125, now seen corresponding path program 1 times [2019-11-24 04:28:40,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:40,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193499854] [2019-11-24 04:28:40,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 04:28:40,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193499854] [2019-11-24 04:28:40,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59612386] [2019-11-24 04:28:40,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:40,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-24 04:28:40,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:41,108 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-24 04:28:41,109 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,115 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:41,116 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,116 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-11-24 04:28:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 04:28:41,127 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:41,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:41,227 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:41,227 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2019-11-24 04:28:41,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:41,229 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,235 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 04:28:41,237 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:41,238 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 13 [2019-11-24 04:28:41,239 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,252 INFO L567 ElimStorePlain]: treesize reduction 13, result has 35.0 percent of original size [2019-11-24 04:28:41,252 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,253 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:7 [2019-11-24 04:28:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:28:41,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-24 04:28:41,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 8] total 15 [2019-11-24 04:28:41,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613453339] [2019-11-24 04:28:41,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 04:28:41,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:41,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 04:28:41,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-24 04:28:41,273 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. Second operand 7 states. [2019-11-24 04:28:41,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:41,451 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2019-11-24 04:28:41,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-24 04:28:41,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-11-24 04:28:41,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:41,456 INFO L225 Difference]: With dead ends: 36 [2019-11-24 04:28:41,456 INFO L226 Difference]: Without dead ends: 22 [2019-11-24 04:28:41,457 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-11-24 04:28:41,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-24 04:28:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-24 04:28:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-24 04:28:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2019-11-24 04:28:41,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 16 [2019-11-24 04:28:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:41,462 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2019-11-24 04:28:41,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 04:28:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2019-11-24 04:28:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-24 04:28:41,464 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:41,464 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:41,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:41,668 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:41,668 INFO L82 PathProgramCache]: Analyzing trace with hash 733568695, now seen corresponding path program 1 times [2019-11-24 04:28:41,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:41,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367846885] [2019-11-24 04:28:41,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:41,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-24 04:28:41,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367846885] [2019-11-24 04:28:41,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714347347] [2019-11-24 04:28:41,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:41,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-24 04:28:41,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:41,924 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-11-24 04:28:41,925 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,927 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:41,928 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 04:28:41,928 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-11-24 04:28:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:28:41,939 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:42,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:42,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:42,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:42,039 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 04:28:42,042 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 13 [2019-11-24 04:28:42,042 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:42,057 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:42,058 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2019-11-24 04:28:42,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:42,059 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:42,070 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 04:28:42,072 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-24 04:28:42,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 04:28:42,075 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 04:28:42,076 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 15 [2019-11-24 04:28:42,077 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-24 04:28:42,090 INFO L567 ElimStorePlain]: treesize reduction 13, result has 35.0 percent of original size [2019-11-24 04:28:42,090 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 04:28:42,090 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:85, output treesize:7 [2019-11-24 04:28:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 04:28:42,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [199117046] [2019-11-24 04:28:42,132 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-11-24 04:28:42,133 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 04:28:42,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 04:28:42,146 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 04:28:42,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 04:28:42,343 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:42,939 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:42,972 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:43,170 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:43,189 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:43,821 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:44,047 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,479 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,741 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,762 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,784 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,800 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:45,818 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,336 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,357 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,795 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,823 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,847 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,866 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:47,885 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:48,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:49,195 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:49,410 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:50,952 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:50,974 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:51,009 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:51,027 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:51,044 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:51,551 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:52,294 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:52,747 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:52,762 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:52,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:53,998 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:54,010 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:54,333 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:54,366 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:55,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:56,273 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:56,291 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:56,496 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:57,246 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:57,275 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,136 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,149 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,159 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,194 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,217 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,344 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 199 [2019-11-24 04:28:58,506 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 198 [2019-11-24 04:28:58,552 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:58,681 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-11-24 04:28:58,786 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 200 [2019-11-24 04:28:59,130 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:59,153 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:59,224 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:59,242 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:59,655 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:28:59,673 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:00,114 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:00,131 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:00,150 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:00,169 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:01,137 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:01,168 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:01,422 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:01,925 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:01,941 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:03,508 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:03,921 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:04,344 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:04,363 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:05,058 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:05,333 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:05,379 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,033 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,048 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,061 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,075 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,449 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,482 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,506 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,519 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,532 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,602 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,624 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,688 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,712 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,739 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,764 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,790 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,815 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,837 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,860 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,886 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,907 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,927 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:06,942 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 04:29:07,633 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 219 [2019-11-24 04:29:07,893 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2019-11-24 04:29:08,335 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 263 [2019-11-24 04:29:08,527 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2019-11-24 04:29:09,189 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 303 [2019-11-24 04:29:09,614 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2019-11-24 04:29:11,530 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 372 [2019-11-24 04:29:12,086 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2019-11-24 04:29:18,090 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5427 conjuctions. This might take some time... [2019-11-24 04:29:21,779 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 476 [2019-11-24 04:29:27,202 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5112 conjuctions. This might take some time... [2019-11-24 04:29:33,127 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 10246 conjuctions. This might take some time... [2019-11-24 04:29:42,753 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 15338 conjuctions. This might take some time...