/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:22:23,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:22:24,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:22:24,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:22:24,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:22:24,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:22:24,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:22:24,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:22:24,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:22:24,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:22:24,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:22:24,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:22:24,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:22:24,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:22:24,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:22:24,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:22:24,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:22:24,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:22:24,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:22:24,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:22:24,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:22:24,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:22:24,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:22:24,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:22:24,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:22:24,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:22:24,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:22:24,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:22:24,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:22:24,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:22:24,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:22:24,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:22:24,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:22:24,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:22:24,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:22:24,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:22:24,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:22:24,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:22:24,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:22:24,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:22:24,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:22:24,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:22:24,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:22:24,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:22:24,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:22:24,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:22:24,165 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:22:24,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:22:24,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:22:24,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:22:24,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:22:24,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:22:24,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:22:24,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:22:24,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:22:24,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:22:24,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:22:24,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:22:24,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:22:24,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:22:24,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:22:24,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:22:24,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:22:24,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:22:24,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:22:24,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:22:24,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:22:24,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:22:24,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:22:24,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:22:24,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:22:24,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:22:24,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:22:24,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:22:24,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:22:24,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:22:24,721 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:22:24,722 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-09-25 12:22:24,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4280d8857/7bc10b57248841438ba66265acd22f68/FLAG6c746ed49 [2020-09-25 12:22:25,465 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:22:25,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-09-25 12:22:25,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4280d8857/7bc10b57248841438ba66265acd22f68/FLAG6c746ed49 [2020-09-25 12:22:25,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4280d8857/7bc10b57248841438ba66265acd22f68 [2020-09-25 12:22:25,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:22:25,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:22:25,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:22:25,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:22:25,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:22:25,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:22:25" (1/1) ... [2020-09-25 12:22:25,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:25, skipping insertion in model container [2020-09-25 12:22:25,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:22:25" (1/1) ... [2020-09-25 12:22:25,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:22:25,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:22:26,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:22:26,348 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:22:26,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:22:26,605 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:22:26,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26 WrapperNode [2020-09-25 12:22:26,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:22:26,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:22:26,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:22:26,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:22:26,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... [2020-09-25 12:22:26,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:22:26,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:22:26,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:22:26,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:22:26,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 12:22:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:22:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:22:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 12:22:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:22:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 12:22:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:22:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:22:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:22:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:22:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:22:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:22:28,480 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:22:28,481 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:22:28,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:22:28 BoogieIcfgContainer [2020-09-25 12:22:28,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:22:28,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:22:28,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:22:28,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:22:28,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:22:25" (1/3) ... [2020-09-25 12:22:28,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501e69ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:22:28, skipping insertion in model container [2020-09-25 12:22:28,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:22:26" (2/3) ... [2020-09-25 12:22:28,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501e69ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:22:28, skipping insertion in model container [2020-09-25 12:22:28,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:22:28" (3/3) ... [2020-09-25 12:22:28,506 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label52.c [2020-09-25 12:22:28,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:22:28,536 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:22:28,559 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:22:28,604 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:22:28,605 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:22:28,605 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:22:28,605 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:22:28,605 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:22:28,605 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:22:28,606 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:22:28,606 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:22:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 12:22:28,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 12:22:28,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:22:28,666 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:22:28,667 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:22:28,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:22:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1583508727, now seen corresponding path program 1 times [2020-09-25 12:22:28,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:22:28,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485969589] [2020-09-25 12:22:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:22:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:29,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:29,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:29,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:30,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:32,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:33,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:34,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:34,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 12:22:34,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:22:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 12:22:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:22:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 12:22:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 12:22:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 12:22:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:22:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:34,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:34,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:22:34,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:22:34,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:22:34,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:34,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:34,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:22:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:22:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:22:34,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:22:34,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485969589] [2020-09-25 12:22:34,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:22:34,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:22:34,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845029992] [2020-09-25 12:22:34,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:22:34,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:22:34,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:22:34,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:22:34,525 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 12:22:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:22:36,699 INFO L93 Difference]: Finished difference Result 1212 states and 1611 transitions. [2020-09-25 12:22:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:22:36,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 12:22:36,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:22:36,725 INFO L225 Difference]: With dead ends: 1212 [2020-09-25 12:22:36,725 INFO L226 Difference]: Without dead ends: 638 [2020-09-25 12:22:36,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:22:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-09-25 12:22:36,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 603. [2020-09-25 12:22:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 12:22:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 719 transitions. [2020-09-25 12:22:36,851 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 719 transitions. Word has length 154 [2020-09-25 12:22:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:22:36,852 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 719 transitions. [2020-09-25 12:22:36,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:22:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 719 transitions. [2020-09-25 12:22:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 12:22:36,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:22:36,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:22:36,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:22:36,863 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:22:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:22:36,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1919557112, now seen corresponding path program 1 times [2020-09-25 12:22:36,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:22:36,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67932614] [2020-09-25 12:22:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:22:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:36,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:37,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:37,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:38,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:41,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:42,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:42,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:22:42,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:22:42,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-09-25 12:22:42,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:42,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:22:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:22:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 12:22:42,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:22:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:42,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:42,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:42,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:22:42,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:22:42,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 12:22:42,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:42,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:42,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:22:42,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:22:42,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:22:42,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 12:22:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:42,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:42,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:22:42,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:22:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 12:22:42,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:42,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:22:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:22:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:22:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:22:42,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67932614] [2020-09-25 12:22:42,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:22:42,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 12:22:42,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524181986] [2020-09-25 12:22:42,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:22:42,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:22:42,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:22:42,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:22:42,685 INFO L87 Difference]: Start difference. First operand 603 states and 719 transitions. Second operand 13 states. [2020-09-25 12:22:42,933 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-09-25 12:22:43,278 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-09-25 12:22:43,983 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-09-25 12:22:44,827 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-09-25 12:22:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:22:48,209 INFO L93 Difference]: Finished difference Result 2302 states and 3100 transitions. [2020-09-25 12:22:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 12:22:48,210 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-09-25 12:22:48,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:22:48,225 INFO L225 Difference]: With dead ends: 2302 [2020-09-25 12:22:48,225 INFO L226 Difference]: Without dead ends: 1326 [2020-09-25 12:22:48,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2020-09-25 12:22:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-09-25 12:22:48,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1138. [2020-09-25 12:22:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2020-09-25 12:22:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1317 transitions. [2020-09-25 12:22:48,332 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1317 transitions. Word has length 175 [2020-09-25 12:22:48,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:22:48,335 INFO L479 AbstractCegarLoop]: Abstraction has 1138 states and 1317 transitions. [2020-09-25 12:22:48,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:22:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1317 transitions. [2020-09-25 12:22:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 12:22:48,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:22:48,344 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:22:48,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:22:48,345 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:22:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:22:48,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1660263340, now seen corresponding path program 1 times [2020-09-25 12:22:48,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:22:48,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060391359] [2020-09-25 12:22:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:22:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:48,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:53,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:53,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 12:22:53,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:22:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 12:22:53,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:53,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:22:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 12:22:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 12:22:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:53,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:22:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:53,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:53,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:53,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:22:53,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:22:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:22:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:53,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:22:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:22:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:22:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:22:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 12:22:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:22:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:22:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:22:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:53,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:22:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:22:53,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:22:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:22:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 12:22:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:22:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:22:54,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:22:54,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:22:54,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:22:54,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 12:22:54,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:22:54,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:22:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:22:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:22:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:22:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:22:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 12:22:54,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060391359] [2020-09-25 12:22:54,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:22:54,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:22:54,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530948530] [2020-09-25 12:22:54,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:22:54,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:22:54,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:22:54,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:22:54,750 INFO L87 Difference]: Start difference. First operand 1138 states and 1317 transitions. Second operand 10 states. [2020-09-25 12:22:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:22:59,845 INFO L93 Difference]: Finished difference Result 3539 states and 4109 transitions. [2020-09-25 12:22:59,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:22:59,848 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2020-09-25 12:22:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:22:59,863 INFO L225 Difference]: With dead ends: 3539 [2020-09-25 12:22:59,863 INFO L226 Difference]: Without dead ends: 1678 [2020-09-25 12:22:59,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:22:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2020-09-25 12:22:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1391. [2020-09-25 12:22:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2020-09-25 12:22:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1602 transitions. [2020-09-25 12:22:59,943 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1602 transitions. Word has length 197 [2020-09-25 12:22:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:22:59,944 INFO L479 AbstractCegarLoop]: Abstraction has 1391 states and 1602 transitions. [2020-09-25 12:22:59,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:22:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1602 transitions. [2020-09-25 12:22:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 12:22:59,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:22:59,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:22:59,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:22:59,953 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:22:59,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:22:59,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1329023780, now seen corresponding path program 1 times [2020-09-25 12:22:59,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:22:59,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169526684] [2020-09-25 12:22:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:22:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:00,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:00,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:00,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:01,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:02,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:05,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:05,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 12:23:05,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:23:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 12:23:05,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:05,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:23:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 12:23:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 12:23:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:05,649 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-09-25 12:23:05,796 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-09-25 12:23:05,989 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2020-09-25 12:23:06,146 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2020-09-25 12:23:06,326 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 39 [2020-09-25 12:23:06,498 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-09-25 12:23:06,686 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-09-25 12:23:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:23:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:06,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:06,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:23:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:23:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:23:06,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:06,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:23:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:23:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 12:23:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:06,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:06,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:23:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:23:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:23:06,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:06,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:23:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:23:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:06,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 12:23:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:23:06,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:23:07,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:23:07,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 12:23:07,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:23:07,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 12:23:07,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:23:07,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:23:07,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:23:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:23:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:23:07,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:23:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 12:23:07,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169526684] [2020-09-25 12:23:07,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:23:07,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 12:23:07,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071026453] [2020-09-25 12:23:07,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 12:23:07,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:23:07,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 12:23:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-09-25 12:23:07,445 INFO L87 Difference]: Start difference. First operand 1391 states and 1602 transitions. Second operand 19 states. [2020-09-25 12:23:08,418 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-25 12:23:08,578 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 12:23:09,142 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-09-25 12:23:09,644 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-09-25 12:23:10,417 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-09-25 12:23:10,874 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-09-25 12:23:11,546 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-09-25 12:23:12,091 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-09-25 12:23:12,581 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-25 12:23:12,806 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 83