/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-crafted/zero_sum_const_m4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:58:12,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:58:12,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:58:12,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:58:12,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:58:12,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:58:12,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:58:12,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:58:12,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:58:12,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:58:12,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:58:12,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:58:12,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:58:12,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:58:12,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:58:12,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:58:12,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:58:12,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:58:12,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:58:12,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:58:12,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:58:12,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:58:12,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:58:12,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:58:12,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:58:12,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:58:12,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:58:12,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:58:12,114 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 22:58:12,141 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:58:12,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:58:12,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 22:58:12,143 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 22:58:12,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 22:58:12,143 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 22:58:12,144 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 22:58:12,144 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 22:58:12,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 22:58:12,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 22:58:12,145 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 22:58:12,146 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 22:58:12,146 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 22:58:12,146 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 22:58:12,146 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 22:58:12,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:58:12,147 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:58:12,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:58:12,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:58:12,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:58:12,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:58:12,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:58:12,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:58:12,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:58:12,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:58:12,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:58:12,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:58:12,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:58:12,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:58:12,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:58:12,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:58:12,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:58:12,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:58:12,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 22:58:12,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:58:12,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:58:12,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:58:12,153 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 22:58:12,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:58:12,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:58:12,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:58:12,453 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:58:12,453 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:58:12,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum_const_m4.c [2019-11-23 22:58:12,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bfe95e0/4f023332418c4b5290c85fdce0f29a3d/FLAG3ca374c54 [2019-11-23 22:58:12,969 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:58:12,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_const_m4.c [2019-11-23 22:58:12,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bfe95e0/4f023332418c4b5290c85fdce0f29a3d/FLAG3ca374c54 [2019-11-23 22:58:13,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92bfe95e0/4f023332418c4b5290c85fdce0f29a3d [2019-11-23 22:58:13,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:58:13,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:58:13,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:58:13,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:58:13,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:58:13,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e22e22f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13, skipping insertion in model container [2019-11-23 22:58:13,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:58:13,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:58:13,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:58:13,615 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:58:13,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:58:13,753 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:58:13,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13 WrapperNode [2019-11-23 22:58:13,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:58:13,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:58:13,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:58:13,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:58:13,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:58:13,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:58:13,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:58:13,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:58:13,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (1/1) ... [2019-11-23 22:58:13,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:58:13,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:58:13,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:58:13,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:58:13,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (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 22:58:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:58:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-23 22:58:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:58:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:58:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:58:14,385 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:58:14,385 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 22:58:14,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:14 BoogieIcfgContainer [2019-11-23 22:58:14,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:58:14,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:58:14,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:58:14,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:58:14,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:58:13" (1/3) ... [2019-11-23 22:58:14,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a02ea88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:14, skipping insertion in model container [2019-11-23 22:58:14,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:13" (2/3) ... [2019-11-23 22:58:14,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a02ea88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:14, skipping insertion in model container [2019-11-23 22:58:14,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:14" (3/3) ... [2019-11-23 22:58:14,395 INFO L109 eAbstractionObserver]: Analyzing ICFG zero_sum_const_m4.c [2019-11-23 22:58:14,408 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:58:14,417 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:58:14,430 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:58:14,460 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:58:14,460 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:58:14,460 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:58:14,461 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:58:14,461 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:58:14,461 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:58:14,461 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:58:14,461 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:58:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 22:58:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 22:58:14,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:58:14,491 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:58:14,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:58:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:58:14,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1803768331, now seen corresponding path program 1 times [2019-11-23 22:58:14,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:58:14,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168300204] [2019-11-23 22:58:14,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:58:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:58:14,710 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 22:58:14,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168300204] [2019-11-23 22:58:14,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:58:14,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:58:14,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131171097] [2019-11-23 22:58:14,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:58:14,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:58:14,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:58:14,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:58:14,731 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-23 22:58:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:58:14,850 INFO L93 Difference]: Finished difference Result 33 states and 49 transitions. [2019-11-23 22:58:14,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:58:14,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-23 22:58:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:58:14,862 INFO L225 Difference]: With dead ends: 33 [2019-11-23 22:58:14,862 INFO L226 Difference]: Without dead ends: 22 [2019-11-23 22:58:14,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:58:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-23 22:58:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-23 22:58:14,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-23 22:58:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 37 transitions. [2019-11-23 22:58:14,900 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 37 transitions. Word has length 13 [2019-11-23 22:58:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:58:14,901 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 37 transitions. [2019-11-23 22:58:14,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:58:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 37 transitions. [2019-11-23 22:58:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-23 22:58:14,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:58:14,902 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:58:14,903 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:58:14,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:58:14,903 INFO L82 PathProgramCache]: Analyzing trace with hash -82978504, now seen corresponding path program 1 times [2019-11-23 22:58:14,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:58:14,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737270705] [2019-11-23 22:58:14,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:58:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:58:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:58:14,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737270705] [2019-11-23 22:58:14,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:58:14,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:58:14,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846419868] [2019-11-23 22:58:14,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:58:14,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:58:14,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:58:14,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:58:14,969 INFO L87 Difference]: Start difference. First operand 22 states and 37 transitions. Second operand 3 states. [2019-11-23 22:58:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:58:15,049 INFO L93 Difference]: Finished difference Result 42 states and 72 transitions. [2019-11-23 22:58:15,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:58:15,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-23 22:58:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:58:15,050 INFO L225 Difference]: With dead ends: 42 [2019-11-23 22:58:15,050 INFO L226 Difference]: Without dead ends: 23 [2019-11-23 22:58:15,051 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:58:15,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-23 22:58:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-23 22:58:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-23 22:58:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2019-11-23 22:58:15,058 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 14 [2019-11-23 22:58:15,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:58:15,058 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2019-11-23 22:58:15,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:58:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2019-11-23 22:58:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:58:15,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:58:15,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:58:15,059 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:58:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:58:15,060 INFO L82 PathProgramCache]: Analyzing trace with hash -393873615, now seen corresponding path program 1 times [2019-11-23 22:58:15,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:58:15,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363826669] [2019-11-23 22:58:15,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:58:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:58:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 22:58:15,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363826669] [2019-11-23 22:58:15,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:58:15,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:58:15,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638722795] [2019-11-23 22:58:15,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:58:15,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:58:15,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:58:15,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:58:15,126 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 4 states. [2019-11-23 22:58:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:58:15,207 INFO L93 Difference]: Finished difference Result 40 states and 68 transitions. [2019-11-23 22:58:15,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:58:15,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-23 22:58:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:58:15,209 INFO L225 Difference]: With dead ends: 40 [2019-11-23 22:58:15,209 INFO L226 Difference]: Without dead ends: 23 [2019-11-23 22:58:15,210 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 22:58:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-23 22:58:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-23 22:58:15,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-23 22:58:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-23 22:58:15,217 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 15 [2019-11-23 22:58:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:58:15,217 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-23 22:58:15,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:58:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-23 22:58:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-23 22:58:15,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:58:15,219 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:58:15,219 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:58:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:58:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash -139980124, now seen corresponding path program 1 times [2019-11-23 22:58:15,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:58:15,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813348871] [2019-11-23 22:58:15,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:58:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:58:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-23 22:58:15,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813348871] [2019-11-23 22:58:15,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362404477] [2019-11-23 22:58:15,303 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 22:58:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:58:15,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-23 22:58:15,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:58:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-23 22:58:15,426 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:58:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-23 22:58:15,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177994778] [2019-11-23 22:58:15,479 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-11-23 22:58:15,480 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 22:58:15,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 22:58:15,494 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 22:58:15,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 22:58:17,216 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-11-23 22:58:17,345 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 125 [2019-11-23 22:58:17,483 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2019-11-23 22:58:26,002 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-23 22:58:26,182 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2019-11-23 22:58:26,342 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-23 22:58:26,498 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 194 [2019-11-23 22:58:36,362 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 221 [2019-11-23 22:58:36,795 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 222 [2019-11-23 22:58:38,225 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2019-11-23 22:58:48,907 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 257 [2019-11-23 22:58:49,029 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 256 [2019-11-23 22:58:50,751 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 261 [2019-11-23 22:58:54,178 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 271 [2019-11-23 22:58:54,299 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 268 [2019-11-23 22:58:56,260 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 271 [2019-11-23 22:58:56,451 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 271 [2019-11-23 22:58:56,620 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2019-11-23 22:58:58,644 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2019-11-23 22:58:58,766 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 275 [2019-11-23 22:58:58,993 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 274 [2019-11-23 22:59:01,238 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 282 [2019-11-23 22:59:05,260 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2019-11-23 22:59:05,373 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 289 [2019-11-23 22:59:07,404 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 292 [2019-11-23 22:59:09,532 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 296 [2019-11-23 22:59:11,731 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 297 [2019-11-23 22:59:14,081 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 300 [2019-11-23 22:59:16,396 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 309 [2019-11-23 22:59:16,519 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 305 [2019-11-23 22:59:21,238 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 313 [2019-11-23 22:59:23,469 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 316 [2019-11-23 22:59:26,375 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2019-11-23 22:59:26,556 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 320 [2019-11-23 22:59:28,823 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 325 [2019-11-23 22:59:28,947 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 324 [2019-11-23 22:59:31,878 WARN L192 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 327 [2019-11-23 22:59:32,146 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 325 [2019-11-23 22:59:32,346 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2019-11-23 22:59:32,542 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 326 [2019-11-23 22:59:32,783 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 329 [2019-11-23 22:59:32,916 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2019-11-23 22:59:33,032 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 333 [2019-11-23 22:59:35,414 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2019-11-23 22:59:35,553 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 336 [2019-11-23 22:59:35,692 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2019-11-23 22:59:35,816 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 338 [2019-11-23 22:59:35,962 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2019-11-23 22:59:36,074 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 342 [2019-11-23 22:59:39,161 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2019-11-23 22:59:39,300 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 346 [2019-11-23 22:59:42,042 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2019-11-23 22:59:42,182 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 348 [2019-11-23 22:59:42,333 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2019-11-23 22:59:42,473 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 350 [2019-11-23 22:59:42,614 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2019-11-23 22:59:42,757 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 354