/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/array-multidimensional/copy-partial-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:19:21,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:19:21,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:19:21,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:19:21,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:19:21,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:19:21,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:19:21,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:19:21,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:19:21,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:19:21,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:19:21,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:19:21,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:19:21,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:19:21,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:19:21,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:19:21,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:19:21,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:19:21,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:19:21,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:19:21,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:19:21,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:19:21,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:19:21,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:19:21,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:19:21,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:19:21,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:19:21,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:19:21,620 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 [2019-11-23 23:19:21,635 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:19:21,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:19:21,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:19:21,636 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:19:21,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:19:21,637 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:19:21,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:19:21,637 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:19:21,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:19:21,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:19:21,638 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:19:21,638 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:19:21,638 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:19:21,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:19:21,639 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:19:21,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:19:21,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:19:21,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:19:21,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:19:21,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:19:21,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:19:21,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:19:21,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:19:21,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:19:21,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:19:21,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:19:21,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:19:21,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:19:21,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:19:21,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:19:21,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:19:21,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:19:21,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:19:21,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:19:21,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:19:21,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:19:21,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:19:21,644 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:19:21,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:19:21,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:19:21,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:19:21,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:19:21,944 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:19:21,945 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2019-11-23 23:19:22,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7c4fddb/7120680fec2a4a28877693279df07807/FLAGd656277ad [2019-11-23 23:19:22,500 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:19:22,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2019-11-23 23:19:22,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7c4fddb/7120680fec2a4a28877693279df07807/FLAGd656277ad [2019-11-23 23:19:22,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7c4fddb/7120680fec2a4a28877693279df07807 [2019-11-23 23:19:22,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:19:22,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:19:22,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:19:22,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:19:22,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:19:22,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:19:22" (1/1) ... [2019-11-23 23:19:22,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f20484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:22, skipping insertion in model container [2019-11-23 23:19:22,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:19:22" (1/1) ... [2019-11-23 23:19:22,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:19:22,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:19:23,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:19:23,118 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:19:23,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:19:23,266 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:19:23,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23 WrapperNode [2019-11-23 23:19:23,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:19:23,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:19:23,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:19:23,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:19:23,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:19:23,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:19:23,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:19:23,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:19:23,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (1/1) ... [2019-11-23 23:19:23,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:19:23,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:19:23,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:19:23,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:19:23,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (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 [2019-11-23 23:19:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:19:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:19:23,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:19:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:19:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:19:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:19:23,954 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:19:23,954 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-23 23:19:23,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:19:23 BoogieIcfgContainer [2019-11-23 23:19:23,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:19:23,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:19:23,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:19:23,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:19:23,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:19:22" (1/3) ... [2019-11-23 23:19:23,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4141a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:19:23, skipping insertion in model container [2019-11-23 23:19:23,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:23" (2/3) ... [2019-11-23 23:19:23,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4141a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:19:23, skipping insertion in model container [2019-11-23 23:19:23,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:19:23" (3/3) ... [2019-11-23 23:19:23,971 INFO L109 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u.c [2019-11-23 23:19:23,982 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:19:23,992 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:19:24,003 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:19:24,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:19:24,030 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:19:24,030 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:19:24,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:19:24,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:19:24,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:19:24,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:19:24,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:19:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-23 23:19:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 23:19:24,053 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:24,054 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:24,055 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:24,060 INFO L82 PathProgramCache]: Analyzing trace with hash 30449946, now seen corresponding path program 1 times [2019-11-23 23:19:24,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:24,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851319763] [2019-11-23 23:19:24,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:24,134 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:24,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409318979] [2019-11-23 23:19:24,135 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 [2019-11-23 23:19:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:24,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:24,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:19:24,270 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:19:24,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851319763] [2019-11-23 23:19:24,289 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:24,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409318979] [2019-11-23 23:19:24,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:24,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-23 23:19:24,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967118451] [2019-11-23 23:19:24,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:19:24,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:24,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:19:24,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:19:24,317 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2019-11-23 23:19:24,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:24,431 INFO L93 Difference]: Finished difference Result 36 states and 61 transitions. [2019-11-23 23:19:24,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:19:24,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-23 23:19:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:24,444 INFO L225 Difference]: With dead ends: 36 [2019-11-23 23:19:24,444 INFO L226 Difference]: Without dead ends: 21 [2019-11-23 23:19:24,447 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:19:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-23 23:19:24,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-23 23:19:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-23 23:19:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 34 transitions. [2019-11-23 23:19:24,487 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 34 transitions. Word has length 9 [2019-11-23 23:19:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:24,487 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 34 transitions. [2019-11-23 23:19:24,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:19:24,488 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2019-11-23 23:19:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 23:19:24,488 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:24,489 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:24,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:24,697 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:24,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash 736261170, now seen corresponding path program 1 times [2019-11-23 23:19:24,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:24,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267718366] [2019-11-23 23:19:24,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:24,703 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:24,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460147392] [2019-11-23 23:19:24,704 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 [2019-11-23 23:19:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:24,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:24,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:19:24,792 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:19:24,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267718366] [2019-11-23 23:19:24,818 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:24,819 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460147392] [2019-11-23 23:19:24,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:24,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:19:24,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088124617] [2019-11-23 23:19:24,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:19:24,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:24,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:19:24,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:19:24,823 INFO L87 Difference]: Start difference. First operand 21 states and 34 transitions. Second operand 6 states. [2019-11-23 23:19:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:24,999 INFO L93 Difference]: Finished difference Result 60 states and 101 transitions. [2019-11-23 23:19:25,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:19:25,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-23 23:19:25,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:25,003 INFO L225 Difference]: With dead ends: 60 [2019-11-23 23:19:25,003 INFO L226 Difference]: Without dead ends: 43 [2019-11-23 23:19:25,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:19:25,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-23 23:19:25,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 32. [2019-11-23 23:19:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-23 23:19:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2019-11-23 23:19:25,040 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 49 transitions. Word has length 13 [2019-11-23 23:19:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:25,040 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 49 transitions. [2019-11-23 23:19:25,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:19:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2019-11-23 23:19:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-23 23:19:25,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:25,042 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:25,246 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:25,247 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:25,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:25,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1571085058, now seen corresponding path program 1 times [2019-11-23 23:19:25,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:25,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258591731] [2019-11-23 23:19:25,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:25,253 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:25,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898908513] [2019-11-23 23:19:25,254 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 [2019-11-23 23:19:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:25,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:25,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:19:25,322 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:19:25,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258591731] [2019-11-23 23:19:25,342 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:25,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898908513] [2019-11-23 23:19:25,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:25,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:19:25,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105777602] [2019-11-23 23:19:25,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:19:25,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:25,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:19:25,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:19:25,345 INFO L87 Difference]: Start difference. First operand 32 states and 49 transitions. Second operand 6 states. [2019-11-23 23:19:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:25,499 INFO L93 Difference]: Finished difference Result 89 states and 145 transitions. [2019-11-23 23:19:25,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:19:25,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-23 23:19:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:25,501 INFO L225 Difference]: With dead ends: 89 [2019-11-23 23:19:25,501 INFO L226 Difference]: Without dead ends: 61 [2019-11-23 23:19:25,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:19:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-23 23:19:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2019-11-23 23:19:25,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-23 23:19:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2019-11-23 23:19:25,515 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 21 [2019-11-23 23:19:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:25,515 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2019-11-23 23:19:25,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:19:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2019-11-23 23:19:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-23 23:19:25,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:25,520 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:25,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:25,721 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash 761103358, now seen corresponding path program 1 times [2019-11-23 23:19:25,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:25,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758750002] [2019-11-23 23:19:25,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:25,731 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:25,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11598426] [2019-11-23 23:19:25,732 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 [2019-11-23 23:19:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:25,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:25,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:19:25,823 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:19:25,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758750002] [2019-11-23 23:19:25,867 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:25,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11598426] [2019-11-23 23:19:25,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [445339410] [2019-11-23 23:19:25,894 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-11-23 23:19:25,894 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:25,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:25,907 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:25,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:26,429 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:26,905 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 132 [2019-11-23 23:19:27,062 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,136 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,151 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,164 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,338 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2019-11-23 23:19:27,456 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2019-11-23 23:19:27,669 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 170 [2019-11-23 23:19:27,795 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2019-11-23 23:19:27,900 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,922 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:27,964 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,027 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,083 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,174 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,196 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,218 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,242 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,318 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:28,518 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 203 [2019-11-23 23:19:28,658 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 203 [2019-11-23 23:19:28,782 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 196 [2019-11-23 23:19:28,997 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 211 [2019-11-23 23:19:29,231 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 204 [2019-11-23 23:19:29,423 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2019-11-23 23:19:29,581 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2019-11-23 23:19:29,694 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:29,716 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:29,735 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:29,955 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:29,974 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:29,993 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,011 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,113 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,130 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,146 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,162 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,663 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,773 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,780 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,814 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:30,858 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,022 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,058 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,068 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,107 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,116 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,126 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,728 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,786 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,894 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,905 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:31,978 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,040 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,051 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,088 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,290 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,403 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,433 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,440 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,446 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,597 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,727 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,737 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,745 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,753 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:32,771 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,133 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,145 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,158 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,244 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,257 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,273 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,350 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,451 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:33,720 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:19:33,913 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-11-23 23:19:34,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-23 23:19:34,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5] total 15 [2019-11-23 23:19:34,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884651338] [2019-11-23 23:19:34,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 23:19:34,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:34,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 23:19:34,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2019-11-23 23:19:34,043 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand 7 states. [2019-11-23 23:19:34,182 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-11-23 23:19:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:34,344 INFO L93 Difference]: Finished difference Result 82 states and 113 transitions. [2019-11-23 23:19:34,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 23:19:34,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-23 23:19:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:34,346 INFO L225 Difference]: With dead ends: 82 [2019-11-23 23:19:34,346 INFO L226 Difference]: Without dead ends: 61 [2019-11-23 23:19:34,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-11-23 23:19:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-23 23:19:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-11-23 23:19:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-23 23:19:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2019-11-23 23:19:34,356 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 29 [2019-11-23 23:19:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:34,357 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2019-11-23 23:19:34,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 23:19:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2019-11-23 23:19:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-23 23:19:34,358 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:34,358 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:34,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:34,562 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:34,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:34,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1482996891, now seen corresponding path program 1 times [2019-11-23 23:19:34,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:34,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568247515] [2019-11-23 23:19:34,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:34,567 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:34,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162641197] [2019-11-23 23:19:34,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:34,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:34,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-23 23:19:34,654 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-23 23:19:34,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568247515] [2019-11-23 23:19:34,688 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:34,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162641197] [2019-11-23 23:19:34,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [119630803] [2019-11-23 23:19:34,689 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-11-23 23:19:34,690 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:34,690 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:34,690 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:34,691 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:34,880 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,230 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,289 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,302 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,346 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,563 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 156 [2019-11-23 23:19:35,784 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2019-11-23 23:19:35,916 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 167 [2019-11-23 23:19:35,994 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,011 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,038 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,053 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,068 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,118 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,170 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,251 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,265 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:36,462 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 201 [2019-11-23 23:19:36,913 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2019-11-23 23:19:37,310 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,328 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,406 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,467 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,484 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,503 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,521 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,537 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,613 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,687 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,703 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,721 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,739 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,760 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:37,777 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,158 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2019-11-23 23:19:38,313 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,433 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,443 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,482 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,491 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,783 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,809 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,819 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,831 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,863 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:38,901 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,200 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,212 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,291 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,301 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,368 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,410 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,418 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,514 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,568 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,626 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,890 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,955 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:39,982 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,026 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,043 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,166 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,177 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,187 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,276 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,284 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,325 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,755 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,800 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,810 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,880 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,924 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,935 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:40,982 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:41,034 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:41,195 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:19:41,374 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-11-23 23:19:41,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-23 23:19:41,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5] total 16 [2019-11-23 23:19:41,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32766149] [2019-11-23 23:19:41,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 23:19:41,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:41,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 23:19:41,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2019-11-23 23:19:41,452 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand 8 states. [2019-11-23 23:19:41,581 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-23 23:19:41,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:41,807 INFO L93 Difference]: Finished difference Result 87 states and 123 transitions. [2019-11-23 23:19:41,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 23:19:41,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-11-23 23:19:41,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:41,809 INFO L225 Difference]: With dead ends: 87 [2019-11-23 23:19:41,809 INFO L226 Difference]: Without dead ends: 61 [2019-11-23 23:19:41,809 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2019-11-23 23:19:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-23 23:19:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2019-11-23 23:19:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-23 23:19:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2019-11-23 23:19:41,817 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 31 [2019-11-23 23:19:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:41,818 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2019-11-23 23:19:41,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 23:19:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2019-11-23 23:19:41,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-23 23:19:41,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:41,819 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:42,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:42,023 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:42,023 INFO L82 PathProgramCache]: Analyzing trace with hash -359718006, now seen corresponding path program 1 times [2019-11-23 23:19:42,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:42,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546134068] [2019-11-23 23:19:42,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:42,029 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:42,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870006348] [2019-11-23 23:19:42,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:42,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:42,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-23 23:19:42,098 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-23 23:19:42,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546134068] [2019-11-23 23:19:42,132 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:42,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870006348] [2019-11-23 23:19:42,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [631094743] [2019-11-23 23:19:42,134 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-11-23 23:19:42,134 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:42,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:42,135 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:42,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:42,253 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,409 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,429 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,502 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,513 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,889 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,937 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,951 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,962 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,975 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:42,988 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,088 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,675 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,690 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,841 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,855 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,925 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,940 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,952 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:43,988 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,001 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,150 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 233 [2019-11-23 23:19:44,264 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 233 [2019-11-23 23:19:44,595 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,611 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,680 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,694 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,772 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,793 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,874 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,890 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,964 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:44,985 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:45,169 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 227 [2019-11-23 23:19:45,459 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 240 [2019-11-23 23:19:45,572 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2019-11-23 23:19:45,721 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2019-11-23 23:19:45,841 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 246 [2019-11-23 23:19:45,990 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2019-11-23 23:19:46,107 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 250 [2019-11-23 23:19:46,260 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2019-11-23 23:19:46,407 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 254 [2019-11-23 23:19:46,644 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 259 [2019-11-23 23:19:46,757 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:46,773 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:46,790 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:46,809 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:46,896 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,079 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,101 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,200 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,222 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,240 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,261 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,325 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,419 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,470 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,486 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,528 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,544 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,557 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,768 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,821 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,825 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,888 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,895 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:47,963 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,010 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,042 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,091 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,099 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,107 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,308 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,391 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,400 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,460 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,588 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,695 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,716 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,728 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,739 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,896 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,952 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,964 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,970 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:48,994 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,167 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,195 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,230 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,259 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,287 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,294 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,509 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,625 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,672 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,682 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,738 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,764 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,818 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,856 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:49,978 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:50,075 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:19:50,254 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-11-23 23:19:50,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-23 23:19:50,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5] total 16 [2019-11-23 23:19:50,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206824584] [2019-11-23 23:19:50,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 23:19:50,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:50,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 23:19:50,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-11-23 23:19:50,342 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand 8 states. [2019-11-23 23:19:50,463 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-11-23 23:19:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:50,644 INFO L93 Difference]: Finished difference Result 85 states and 117 transitions. [2019-11-23 23:19:50,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 23:19:50,644 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-11-23 23:19:50,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:50,646 INFO L225 Difference]: With dead ends: 85 [2019-11-23 23:19:50,646 INFO L226 Difference]: Without dead ends: 62 [2019-11-23 23:19:50,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2019-11-23 23:19:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-23 23:19:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2019-11-23 23:19:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-23 23:19:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2019-11-23 23:19:50,656 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 31 [2019-11-23 23:19:50,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:50,657 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2019-11-23 23:19:50,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 23:19:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2019-11-23 23:19:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-23 23:19:50,658 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:50,658 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:50,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:50,861 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:50,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:50,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1351215385, now seen corresponding path program 1 times [2019-11-23 23:19:50,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:50,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368564990] [2019-11-23 23:19:50,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:50,866 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:50,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251848268] [2019-11-23 23:19:50,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:50,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:50,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-23 23:19:50,942 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-23 23:19:50,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368564990] [2019-11-23 23:19:50,975 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:50,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251848268] [2019-11-23 23:19:50,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1587062709] [2019-11-23 23:19:50,976 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-11-23 23:19:50,976 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:50,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:50,976 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:50,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:51,087 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,260 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,266 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,276 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,319 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,633 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,647 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,690 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,701 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,737 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,748 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,761 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,772 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,805 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:51,863 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,405 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,419 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,432 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,447 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,463 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,540 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,552 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,566 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,580 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,659 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,674 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,689 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,755 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,823 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,838 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,872 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:52,929 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,089 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 245 [2019-11-23 23:19:53,218 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 245 [2019-11-23 23:19:53,787 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,805 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,822 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,838 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,858 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:53,951 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,162 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,187 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,417 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,438 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,471 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,485 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,500 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,513 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,551 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,788 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,860 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,866 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,923 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:54,929 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,066 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,076 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,181 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,190 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,212 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,221 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,470 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,481 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,703 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,714 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,747 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,757 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,889 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:55,899 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,006 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,109 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,150 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,155 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,160 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,231 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,283 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,356 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,363 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,373 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,380 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,601 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,709 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,718 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,726 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,820 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,860 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:56,868 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:57,008 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:57,107 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:19:57,283 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-11-23 23:19:57,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-23 23:19:57,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 5] total 17 [2019-11-23 23:19:57,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549972728] [2019-11-23 23:19:57,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-23 23:19:57,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:57,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-23 23:19:57,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2019-11-23 23:19:57,387 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand 9 states. [2019-11-23 23:19:57,507 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-11-23 23:19:57,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:57,711 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2019-11-23 23:19:57,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-23 23:19:57,711 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2019-11-23 23:19:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:57,713 INFO L225 Difference]: With dead ends: 86 [2019-11-23 23:19:57,713 INFO L226 Difference]: Without dead ends: 63 [2019-11-23 23:19:57,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2019-11-23 23:19:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-23 23:19:57,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 54. [2019-11-23 23:19:57,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-23 23:19:57,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2019-11-23 23:19:57,724 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 33 [2019-11-23 23:19:57,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:57,724 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2019-11-23 23:19:57,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-23 23:19:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2019-11-23 23:19:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-23 23:19:57,725 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:57,725 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:57,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:57,943 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:57,943 INFO L82 PathProgramCache]: Analyzing trace with hash 850019247, now seen corresponding path program 1 times [2019-11-23 23:19:57,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:57,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010834753] [2019-11-23 23:19:57,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:57,948 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:57,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884992587] [2019-11-23 23:19:57,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:57,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:57,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-23 23:19:58,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-23 23:19:58,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010834753] [2019-11-23 23:19:58,048 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:58,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884992587] [2019-11-23 23:19:58,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1261860145] [2019-11-23 23:19:58,050 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-11-23 23:19:58,050 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:58,050 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:58,050 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:58,050 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:58,182 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,383 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,430 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,441 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,452 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,726 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,782 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,794 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,806 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,816 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,911 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:58,923 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,410 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,461 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,475 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,623 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,637 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,690 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,704 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,717 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,731 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:59,767 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,329 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 211 [2019-11-23 23:20:00,386 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,425 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,464 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,562 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,572 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,615 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,627 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,669 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,722 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:00,759 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,147 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 237 [2019-11-23 23:20:01,435 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,451 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,507 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,533 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,569 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,584 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,628 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,670 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,821 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,964 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,978 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:01,993 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,009 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,042 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,055 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,329 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,394 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,401 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,407 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,425 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,520 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,579 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,605 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,638 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,646 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,652 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,686 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,895 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,908 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:02,999 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,012 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,023 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,084 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,167 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,180 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,346 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,405 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,430 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,436 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,579 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,616 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,622 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,628 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,643 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,748 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,789 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,797 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,829 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,865 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:03,893 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,174 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,184 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,264 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,295 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,467 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,477 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,529 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,576 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:04,890 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:05,063 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:05,077 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:05,292 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:05,581 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:05,968 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:06,257 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:06,292 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:06,450 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:06,566 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:06,571 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:06,905 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:06,915 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:07,447 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:07,749 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:07,759 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:07,795 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:08,048 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:08,058 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:08,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:08,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:08,245 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:08,511 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:08,729 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-23 23:20:09,121 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:09,134 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:09,317 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:09,678 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:09,816 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:09,823 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:09,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:09,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:10,010 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:10,203 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:10,498 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:10,541 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:10,791 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:10,845 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:11,272 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:11,329 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:11,625 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:11,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:11,693 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:11,735 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:12,044 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:12,054 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:12,096 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:12,225 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-23 23:20:12,439 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:12,876 WARN L192 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:13,152 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:13,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:13,257 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:13,668 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:13,843 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:14,025 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:14,333 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:14,345 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:14,541 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:14,821 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:14,871 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:14,986 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:14,992 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:15,244 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:15,353 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:15,649 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:15,865 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:15,875 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:16,180 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:16,463 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:16,615 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:16,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:16,732 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:17,107 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:17,184 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:17,482 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:17,808 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:17,820 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:17,908 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:17,915 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:18,291 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:18,521 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:18,526 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:18,825 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:19,073 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:19,354 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:19,402 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:19,642 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:19,817 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:20,142 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:20,178 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:20,326 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:20,334 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:20,428 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:20,552 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:20,785 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:21,053 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-23 23:20:21,341 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:21,564 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:21,611 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:21,870 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:22,101 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:22,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:22,239 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:22,484 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:22,805 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:22,884 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:22,892 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:23,186 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:23,196 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:23,411 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:23,891 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:24,169 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:24,173 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:24,406 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:24,662 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:24,746 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:24,964 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:25,131 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:25,178 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:25,460 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:25,755 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:26,103 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-23 23:20:26,365 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:26,369 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:26,585 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:26,826 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:26,835 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:26,841 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:27,253 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:27,318 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:27,570 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:27,829 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:27,965 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:28,052 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:28,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:28,244 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-23 23:20:28,536 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:28,789 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:28,801 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:28,809 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:29,031 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:29,245 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:29,286 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:29,507 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:29,601 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:29,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:29,708 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:29,714 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:29,962 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:30,143 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:30,446 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:30,456 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:30,463 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:30,741 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:31,133 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:31,138 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:31,184 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:31,433 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:31,475 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:31,886 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:32,059 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:32,354 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:32,366 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:32,617 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:32,718 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:32,722 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:32,982 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:33,166 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:33,338 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:33,379 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:33,687 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:33,729 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:34,062 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:34,105 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:34,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:34,349 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:34,560 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:34,980 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:35,451 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:35,465 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:35,508 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:35,551 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:35,562 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:35,806 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:36,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:36,021 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:36,072 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:36,153 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:36,511 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:36,725 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:36,737 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:37,050 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:37,061 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:37,503 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:37,704 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:37,708 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:37,757 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:38,055 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:38,341 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:38,446 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:38,668 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:38,679 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:39,220 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:39,331 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:39,456 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:39,463 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:39,522 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:39,701 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:40,251 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:40,391 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:40,610 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:40,795 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:41,072 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:41,118 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:41,240 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:41,245 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:41,473 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:41,761 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-11-23 23:20:42,016 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-23 23:20:42,062 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:42,353 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:42,599 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-11-23 23:20:42,646 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:42,863 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-23 23:20:43,257 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:43,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:43,363 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:43,843 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:44,054 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:44,062 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:44,373 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:44,679 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:44,735 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:44,772 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:44,782 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:44,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:45,000 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:45,402 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:45,670 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:45,910 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:46,144 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:46,191 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:46,199 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:46,235 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:46,370 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:46,600 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:46,603 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:46,819 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:46,953 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:47,368 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:47,543 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-23 23:20:47,551 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:47,562 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:47,879 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:47,920 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:48,206 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:48,302 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:48,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:48,544 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:48,720 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:49,079 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:49,121 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:49,423 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:49,467 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:49,476 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:49,800 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:49,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:49,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:50,029 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:50,273 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-23 23:20:50,576 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-11-23 23:20:50,761 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-23 23:20:50,841 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:50,892 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:51,384 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-11-23 23:20:51,458 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:51,557 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:51,560 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-23 23:20:51,856 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62