/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=0.2 --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_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:13:23,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:13:23,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:13:23,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:13:23,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:13:23,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:13:23,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:13:23,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:13:23,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:13:23,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:13:23,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:13:23,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:13:23,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:13:23,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:13:23,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:13:23,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:13:23,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:13:23,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:13:23,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:13:23,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:13:23,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:13:23,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:13:23,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:13:23,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:13:23,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:13:23,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:13:23,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:13:23,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:13:23,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:13:23,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:13:23,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:13:23,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:13:23,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:13:23,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:13:23,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:13:23,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:13:23,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:13:23,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:13:23,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:13:23,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:13:23,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:13:23,703 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 11:13:23,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:13:23,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:13:23,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:13:23,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:13:23,757 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:13:23,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:13:23,758 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:13:23,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:13:23,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:13:23,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:13:23,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:13:23,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:13:23,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:13:23,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:13:23,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:13:23,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:13:23,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:13:23,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:13:23,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:13:23,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:13:23,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:13:23,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:13:23,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:13:23,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:13:23,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:13:23,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:13:23,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:13:23,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:13:23,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:13:23,764 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 11:13:24,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:13:24,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:13:24,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:13:24,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:13:24,231 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:13:24,232 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-09-25 11:13:24,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f6967e30/40f16023de2a4605b5ffc0015d7ad912/FLAG4d40dfc18 [2020-09-25 11:13:25,012 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:13:25,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-09-25 11:13:25,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f6967e30/40f16023de2a4605b5ffc0015d7ad912/FLAG4d40dfc18 [2020-09-25 11:13:25,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f6967e30/40f16023de2a4605b5ffc0015d7ad912 [2020-09-25 11:13:25,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:13:25,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:13:25,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:13:25,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:13:25,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:13:25,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:13:25" (1/1) ... [2020-09-25 11:13:25,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39032048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:25, skipping insertion in model container [2020-09-25 11:13:25,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:13:25" (1/1) ... [2020-09-25 11:13:25,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:13:25,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:13:25,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:13:25,922 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:13:26,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:13:26,107 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:13:26,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26 WrapperNode [2020-09-25 11:13:26,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:13:26,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:13:26,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:13:26,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:13:26,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (1/1) ... [2020-09-25 11:13:26,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:13:26,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:13:26,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:13:26,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:13:26,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (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 11:13:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:13:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:13:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:13:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:13:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:13:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:13:27,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:13:27,629 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:13:27,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:13:27 BoogieIcfgContainer [2020-09-25 11:13:27,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:13:27,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:13:27,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:13:27,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:13:27,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:13:25" (1/3) ... [2020-09-25 11:13:27,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2557d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:13:27, skipping insertion in model container [2020-09-25 11:13:27,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:26" (2/3) ... [2020-09-25 11:13:27,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2557d442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:13:27, skipping insertion in model container [2020-09-25 11:13:27,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:13:27" (3/3) ... [2020-09-25 11:13:27,650 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2020-09-25 11:13:27,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:13:27,677 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:13:27,703 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:13:27,741 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:13:27,741 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:13:27,741 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:13:27,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:13:27,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:13:27,742 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:13:27,742 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:13:27,742 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:13:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 11:13:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 11:13:27,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:27,801 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] [2020-09-25 11:13:27,802 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:27,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1257233759, now seen corresponding path program 1 times [2020-09-25 11:13:27,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:27,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220206630] [2020-09-25 11:13:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:28,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:29,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:30,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:33,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:33,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 11:13:33,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:13:33,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 11:13:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:33,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:13:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 11:13:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 11:13:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:13:33,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:33,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:33,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:13:33,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 11:13:33,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:33,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:13:33,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:13:33,528 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 11:13:33,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220206630] [2020-09-25 11:13:33,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:13:33,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:13:33,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087729093] [2020-09-25 11:13:33,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:13:33,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:33,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:13:33,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:13:33,574 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 11:13:35,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:35,931 INFO L93 Difference]: Finished difference Result 1270 states and 1669 transitions. [2020-09-25 11:13:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:13:35,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2020-09-25 11:13:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:35,959 INFO L225 Difference]: With dead ends: 1270 [2020-09-25 11:13:35,959 INFO L226 Difference]: Without dead ends: 696 [2020-09-25 11:13:35,970 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 11:13:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-09-25 11:13:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 603. [2020-09-25 11:13:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 11:13:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 731 transitions. [2020-09-25 11:13:36,090 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 731 transitions. Word has length 132 [2020-09-25 11:13:36,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:36,094 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 731 transitions. [2020-09-25 11:13:36,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:13:36,094 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 731 transitions. [2020-09-25 11:13:36,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 11:13:36,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:36,111 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 11:13:36,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:13:36,111 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:36,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1159952749, now seen corresponding path program 1 times [2020-09-25 11:13:36,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:36,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145239589] [2020-09-25 11:13:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:40,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:41,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:41,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 11:13:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:13:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 11:13:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:41,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:13:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 11:13:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 11:13:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:41,928 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-09-25 11:13:42,095 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-09-25 11:13:42,256 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-09-25 11:13:42,440 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-09-25 11:13:42,596 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2020-09-25 11:13:42,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:42,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:42,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:42,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:13:42,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:42,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 11:13:42,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:42,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:13:42,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:42,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:13:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:42,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:42,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:42,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:42,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:13:42,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:42,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 11:13:42,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:42,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:13:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:42,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:13:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:13:43,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145239589] [2020-09-25 11:13:43,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:43,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 11:13:43,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946865409] [2020-09-25 11:13:43,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 11:13:43,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:43,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 11:13:43,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 11:13:43,182 INFO L87 Difference]: Start difference. First operand 603 states and 731 transitions. Second operand 20 states. [2020-09-25 11:13:44,386 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-09-25 11:13:44,645 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-25 11:13:44,953 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-09-25 11:13:45,286 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-09-25 11:13:45,636 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-09-25 11:13:46,379 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-09-25 11:13:46,794 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-25 11:13:46,974 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2020-09-25 11:13:47,699 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-09-25 11:13:48,437 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-25 11:13:48,777 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-09-25 11:13:49,154 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2020-09-25 11:13:49,491 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-09-25 11:13:50,164 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-09-25 11:13:50,823 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-09-25 11:13:51,303 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2020-09-25 11:13:51,941 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-09-25 11:13:52,661 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-09-25 11:13:53,397 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-09-25 11:13:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:54,537 INFO L93 Difference]: Finished difference Result 1968 states and 2591 transitions. [2020-09-25 11:13:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-25 11:13:54,539 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2020-09-25 11:13:54,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:54,549 INFO L225 Difference]: With dead ends: 1968 [2020-09-25 11:13:54,549 INFO L226 Difference]: Without dead ends: 1389 [2020-09-25 11:13:54,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=872, Invalid=2208, Unknown=0, NotChecked=0, Total=3080 [2020-09-25 11:13:54,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2020-09-25 11:13:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1280. [2020-09-25 11:13:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2020-09-25 11:13:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1533 transitions. [2020-09-25 11:13:54,611 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1533 transitions. Word has length 154 [2020-09-25 11:13:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:54,612 INFO L479 AbstractCegarLoop]: Abstraction has 1280 states and 1533 transitions. [2020-09-25 11:13:54,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 11:13:54,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1533 transitions. [2020-09-25 11:13:54,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:13:54,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:54,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 11:13:54,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:13:54,619 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:54,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1274964758, now seen corresponding path program 1 times [2020-09-25 11:13:54,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:54,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33359504] [2020-09-25 11:13:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:54,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:54,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:56,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:56,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:57,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:58,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:59,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:59,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 11:13:59,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:13:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 11:13:59,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:59,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:13:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 11:13:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 11:13:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:59,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:59,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:59,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:59,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:13:59,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:13:59,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:59,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:13:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:59,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:59,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:13:59,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 11:13:59,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:59,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:59,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:13:59,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:13:59,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33359504] [2020-09-25 11:13:59,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:59,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 11:13:59,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150513517] [2020-09-25 11:13:59,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:13:59,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:59,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:13:59,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:13:59,985 INFO L87 Difference]: Start difference. First operand 1280 states and 1533 transitions. Second operand 5 states. [2020-09-25 11:14:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:14:02,184 INFO L93 Difference]: Finished difference Result 2998 states and 3728 transitions. [2020-09-25 11:14:02,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:14:02,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 11:14:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:14:02,218 INFO L225 Difference]: With dead ends: 2998 [2020-09-25 11:14:02,219 INFO L226 Difference]: Without dead ends: 1742 [2020-09-25 11:14:02,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:14:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2020-09-25 11:14:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1709. [2020-09-25 11:14:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1709 states. [2020-09-25 11:14:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2102 transitions. [2020-09-25 11:14:02,320 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2102 transitions. Word has length 161 [2020-09-25 11:14:02,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:14:02,322 INFO L479 AbstractCegarLoop]: Abstraction has 1709 states and 2102 transitions. [2020-09-25 11:14:02,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:14:02,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2102 transitions. [2020-09-25 11:14:02,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 11:14:02,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:14:02,339 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-09-25 11:14:02,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:14:02,340 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:14:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:14:02,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1406452310, now seen corresponding path program 1 times [2020-09-25 11:14:02,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:14:02,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848465097] [2020-09-25 11:14:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:14:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:02,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:02,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:03,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:07,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:07,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:14:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 11:14:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:14:07,965 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2020-09-25 11:14:08,153 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-09-25 11:14:08,330 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-09-25 11:14:08,483 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-09-25 11:14:08,635 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2020-09-25 11:14:08,771 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 28 [2020-09-25 11:14:08,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:14:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:08,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:08,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:14:08,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:14:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:08,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:14:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:14:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:08,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 11:14:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:08,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:14:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:14:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:08,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:14:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:14:08,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:14:08,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 11:14:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:14:08,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:14:08,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:14:08,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 11:14:08,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:14:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:14:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 11:14:09,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848465097] [2020-09-25 11:14:09,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:14:09,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 11:14:09,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927183919] [2020-09-25 11:14:09,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 11:14:09,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:14:09,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 11:14:09,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:14:09,190 INFO L87 Difference]: Start difference. First operand 1709 states and 2102 transitions. Second operand 16 states. [2020-09-25 11:14:10,980 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 11:14:11,205 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-25 11:14:12,076 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-09-25 11:14:12,605 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2020-09-25 11:14:13,248 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 107 [2020-09-25 11:14:13,610 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 104 [2020-09-25 11:14:14,374 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99