/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/product-lines/email_spec11_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:51:50,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:51:50,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:51:50,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:51:50,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:51:50,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:51:50,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:51:50,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:51:50,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:51:50,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:51:50,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:51:50,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:51:50,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:51:50,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:51:50,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:51:50,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:51:50,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:51:50,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:51:50,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:51:50,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:51:50,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:51:50,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:51:50,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:51:50,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:51:50,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:51:50,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:51:50,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:51:50,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:51:50,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:51:50,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:51:50,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:51:50,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:51:50,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:51:50,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:51:50,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:51:50,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:51:50,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:51:50,798 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:51:50,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:51:50,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:51:50,800 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:51:50,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:51:50,800 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:51:50,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:51:50,801 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:51:50,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:51:50,801 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:51:50,802 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:51:50,803 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:51:50,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:51:50,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:51:50,804 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:51:50,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:51:50,805 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:51:50,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:51:50,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:51:50,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:51:50,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:51:50,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:51:50,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:51:50,806 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:51:50,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:51:50,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:51:50,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:51:50,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:51:50,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:51:50,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:51:50,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:51:50,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:51:50,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:51:50,810 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:51:50,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:51:50,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:51:50,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:51:50,811 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:51:51,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:51:51,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:51:51,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:51:51,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:51:51,111 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:51:51,112 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product30.cil.c [2019-11-24 04:51:51,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a54c0e71/01be2bef84a54b50acd5fef8025e1187/FLAG95ec4ed36 [2019-11-24 04:51:51,837 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:51:51,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product30.cil.c [2019-11-24 04:51:51,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a54c0e71/01be2bef84a54b50acd5fef8025e1187/FLAG95ec4ed36 [2019-11-24 04:51:52,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a54c0e71/01be2bef84a54b50acd5fef8025e1187 [2019-11-24 04:51:52,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:51:52,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:51:52,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:51:52,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:51:52,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:51:52,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:51:52" (1/1) ... [2019-11-24 04:51:52,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51de3a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:52, skipping insertion in model container [2019-11-24 04:51:52,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:51:52" (1/1) ... [2019-11-24 04:51:52,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:51:52,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:51:52,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:51:52,980 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:51:53,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:51:53,167 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:51:53,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53 WrapperNode [2019-11-24 04:51:53,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:51:53,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:51:53,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:51:53,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:51:53,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:51:53,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:51:53,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:51:53,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:51:53,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... [2019-11-24 04:51:53,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:51:53,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:51:53,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:51:53,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:51:53,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:51:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 04:51:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:51:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 04:51:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:51:53,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:52:01,520 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:52:01,521 INFO L284 CfgBuilder]: Removed 323 assume(true) statements. [2019-11-24 04:52:01,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:52:01 BoogieIcfgContainer [2019-11-24 04:52:01,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:52:01,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:52:01,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:52:01,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:52:01,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:51:52" (1/3) ... [2019-11-24 04:52:01,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463d4a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:52:01, skipping insertion in model container [2019-11-24 04:52:01,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:51:53" (2/3) ... [2019-11-24 04:52:01,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463d4a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:52:01, skipping insertion in model container [2019-11-24 04:52:01,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:52:01" (3/3) ... [2019-11-24 04:52:01,539 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product30.cil.c [2019-11-24 04:52:01,549 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:52:01,557 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 04:52:01,570 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 04:52:01,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:52:01,599 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:52:01,599 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:52:01,599 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:52:01,599 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:52:01,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:52:01,599 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:52:01,599 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:52:01,616 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-11-24 04:52:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 04:52:01,623 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:52:01,624 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:52:01,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:52:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:52:01,631 INFO L82 PathProgramCache]: Analyzing trace with hash -301437800, now seen corresponding path program 1 times [2019-11-24 04:52:01,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:52:01,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903611088] [2019-11-24 04:52:01,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:52:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:02,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903611088] [2019-11-24 04:52:02,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:52:02,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:52:02,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192062602] [2019-11-24 04:52:02,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 04:52:02,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:52:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 04:52:02,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:52:02,056 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-11-24 04:52:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:52:02,078 INFO L93 Difference]: Finished difference Result 56 states and 89 transitions. [2019-11-24 04:52:02,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 04:52:02,080 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-24 04:52:02,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:52:02,091 INFO L225 Difference]: With dead ends: 56 [2019-11-24 04:52:02,092 INFO L226 Difference]: Without dead ends: 38 [2019-11-24 04:52:02,095 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:52:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-24 04:52:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-24 04:52:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-24 04:52:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2019-11-24 04:52:02,135 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 7 [2019-11-24 04:52:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:52:02,135 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2019-11-24 04:52:02,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 04:52:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2019-11-24 04:52:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 04:52:02,136 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:52:02,137 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:52:02,137 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:52:02,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:52:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1038483011, now seen corresponding path program 1 times [2019-11-24 04:52:02,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:52:02,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103218423] [2019-11-24 04:52:02,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:52:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:02,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103218423] [2019-11-24 04:52:02,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:52:02,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:52:02,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892296430] [2019-11-24 04:52:02,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:52:02,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:52:02,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:52:02,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:52:02,276 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 3 states. [2019-11-24 04:52:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:52:02,311 INFO L93 Difference]: Finished difference Result 52 states and 76 transitions. [2019-11-24 04:52:02,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:52:02,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 04:52:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:52:02,316 INFO L225 Difference]: With dead ends: 52 [2019-11-24 04:52:02,316 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 04:52:02,318 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 [2019-11-24 04:52:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 04:52:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 04:52:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 04:52:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 63 transitions. [2019-11-24 04:52:02,336 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 63 transitions. Word has length 8 [2019-11-24 04:52:02,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:52:02,337 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 63 transitions. [2019-11-24 04:52:02,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:52:02,337 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2019-11-24 04:52:02,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 04:52:02,339 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:52:02,339 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:52:02,340 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:52:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:52:02,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1677161789, now seen corresponding path program 1 times [2019-11-24 04:52:02,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:52:02,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47047210] [2019-11-24 04:52:02,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:52:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 04:52:02,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47047210] [2019-11-24 04:52:02,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:52:02,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:52:02,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27035539] [2019-11-24 04:52:02,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 04:52:02,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:52:02,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 04:52:02,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:52:02,924 INFO L87 Difference]: Start difference. First operand 40 states and 63 transitions. Second operand 5 states. [2019-11-24 04:52:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:52:03,151 INFO L93 Difference]: Finished difference Result 84 states and 129 transitions. [2019-11-24 04:52:03,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 04:52:03,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-24 04:52:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:52:03,153 INFO L225 Difference]: With dead ends: 84 [2019-11-24 04:52:03,153 INFO L226 Difference]: Without dead ends: 74 [2019-11-24 04:52:03,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-24 04:52:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-24 04:52:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2019-11-24 04:52:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-24 04:52:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 112 transitions. [2019-11-24 04:52:03,165 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 112 transitions. Word has length 12 [2019-11-24 04:52:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:52:03,165 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 112 transitions. [2019-11-24 04:52:03,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 04:52:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 112 transitions. [2019-11-24 04:52:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 04:52:03,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:52:03,167 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:52:03,167 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:52:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:52:03,167 INFO L82 PathProgramCache]: Analyzing trace with hash -443257380, now seen corresponding path program 1 times [2019-11-24 04:52:03,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:52:03,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122489347] [2019-11-24 04:52:03,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:52:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:03,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122489347] [2019-11-24 04:52:03,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:52:03,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:52:03,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277365366] [2019-11-24 04:52:03,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:52:03,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:52:03,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:52:03,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:52:03,229 INFO L87 Difference]: Start difference. First operand 66 states and 112 transitions. Second operand 3 states. [2019-11-24 04:52:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:52:03,258 INFO L93 Difference]: Finished difference Result 188 states and 324 transitions. [2019-11-24 04:52:03,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:52:03,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-24 04:52:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:52:03,260 INFO L225 Difference]: With dead ends: 188 [2019-11-24 04:52:03,260 INFO L226 Difference]: Without dead ends: 126 [2019-11-24 04:52:03,261 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 [2019-11-24 04:52:03,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-24 04:52:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 112. [2019-11-24 04:52:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-24 04:52:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 200 transitions. [2019-11-24 04:52:03,278 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 200 transitions. Word has length 13 [2019-11-24 04:52:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:52:03,279 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 200 transitions. [2019-11-24 04:52:03,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:52:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 200 transitions. [2019-11-24 04:52:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 04:52:03,280 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:52:03,280 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:52:03,281 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:52:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:52:03,281 INFO L82 PathProgramCache]: Analyzing trace with hash 392922677, now seen corresponding path program 1 times [2019-11-24 04:52:03,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:52:03,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76846559] [2019-11-24 04:52:03,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:52:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:03,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76846559] [2019-11-24 04:52:03,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458730147] [2019-11-24 04:52:03,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:52:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:52:03,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 04:52:03,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:52:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:03,815 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:52:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:52:03,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1629091402] [2019-11-24 04:52:03,885 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-11-24 04:52:03,885 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 04:52:03,892 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 04:52:03,899 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 04:52:03,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 04:52:53,223 WARN L192 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 687 [2019-11-24 04:52:57,253 WARN L192 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 296 DAG size of output: 241 [2019-11-24 04:52:57,683 WARN L192 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-11-24 04:53:00,646 WARN L192 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:01,922 WARN L192 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:03,240 WARN L192 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:04,471 WARN L192 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:05,613 WARN L192 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:06,761 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1112 [2019-11-24 04:53:07,038 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 04:53:19,516 WARN L192 SmtUtils]: Spent 12.25 s on a formula simplification. DAG size of input: 723 DAG size of output: 648