/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=0.1 --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_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:06:11,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:06:11,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:06:11,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:06:11,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:06:11,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:06:11,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:06:11,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:06:11,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:06:11,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:06:11,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:06:11,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:06:11,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:06:11,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:06:11,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:06:11,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:06:11,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:06:11,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:06:11,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:06:11,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:06:11,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:06:11,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:06:11,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:06:11,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:06:11,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:06:11,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:06:11,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:06:11,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:06:11,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:06:11,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:06:11,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:06:11,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:06:11,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:06:11,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:06:11,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:06:11,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:06:11,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:06:11,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:06:11,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:06:11,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:06:11,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:06:11,294 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 10:06:11,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:06:11,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:06:11,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:06:11,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:06:11,338 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:06:11,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:06:11,339 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:06:11,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:06:11,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:06:11,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:06:11,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:06:11,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:06:11,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:06:11,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:06:11,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:06:11,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:06:11,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:06:11,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:06:11,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:06:11,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:06:11,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:06:11,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:06:11,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:06:11,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:06:11,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:06:11,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:06:11,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:06:11,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:06:11,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:06:11,344 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:06:11,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:06:11,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:06:11,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:06:11,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:06:11,832 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:06:11,833 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-09-25 10:06:11,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2c87f7f/719ff9a8a3be4eaa89b4385f91e912c8/FLAG6a1ecfb1a [2020-09-25 10:06:12,582 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:06:12,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-09-25 10:06:12,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2c87f7f/719ff9a8a3be4eaa89b4385f91e912c8/FLAG6a1ecfb1a [2020-09-25 10:06:12,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2c87f7f/719ff9a8a3be4eaa89b4385f91e912c8 [2020-09-25 10:06:12,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:06:12,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:06:12,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:06:12,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:06:12,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:06:12,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:06:12" (1/1) ... [2020-09-25 10:06:12,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790fb128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:12, skipping insertion in model container [2020-09-25 10:06:12,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:06:12" (1/1) ... [2020-09-25 10:06:12,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:06:12,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:06:13,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:06:13,363 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:06:13,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:06:13,637 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:06:13,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13 WrapperNode [2020-09-25 10:06:13,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:06:13,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:06:13,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:06:13,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:06:13,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (1/1) ... [2020-09-25 10:06:13,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:06:13,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:06:13,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:06:13,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:06:13,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (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 10:06:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:06:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:06:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 10:06:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:06:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 10:06:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:06:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:06:13,869 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:06:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:06:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:06:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:06:15,313 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:06:15,314 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:06:15,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:06:15 BoogieIcfgContainer [2020-09-25 10:06:15,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:06:15,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:06:15,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:06:15,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:06:15,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:06:12" (1/3) ... [2020-09-25 10:06:15,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6289e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:06:15, skipping insertion in model container [2020-09-25 10:06:15,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:06:13" (2/3) ... [2020-09-25 10:06:15,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6289e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:06:15, skipping insertion in model container [2020-09-25 10:06:15,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:06:15" (3/3) ... [2020-09-25 10:06:15,335 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-09-25 10:06:15,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:06:15,363 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:06:15,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:06:15,430 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:06:15,430 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:06:15,430 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:06:15,430 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:06:15,431 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:06:15,431 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:06:15,431 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:06:15,431 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:06:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 10:06:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-25 10:06:15,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:06:15,489 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] [2020-09-25 10:06:15,490 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:06:15,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:06:15,498 INFO L82 PathProgramCache]: Analyzing trace with hash 461278893, now seen corresponding path program 1 times [2020-09-25 10:06:15,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:06:15,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282248083] [2020-09-25 10:06:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:06:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:15,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:16,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:16,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:16,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:17,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:19,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:20,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:20,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-25 10:06:20,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:06:20,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 10:06:20,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:20,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:06:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 10:06:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 10:06:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:06:21,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:06:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:21,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:06:21,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:06:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 10:06:21,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:21,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:21,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:06:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:06:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:06:21,231 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 10:06:21,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282248083] [2020-09-25 10:06:21,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:06:21,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:06:21,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294495240] [2020-09-25 10:06:21,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:06:21,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:06:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:06:21,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:06:21,276 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 10:06:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:06:23,483 INFO L93 Difference]: Finished difference Result 1235 states and 1633 transitions. [2020-09-25 10:06:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:06:23,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-09-25 10:06:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:06:23,524 INFO L225 Difference]: With dead ends: 1235 [2020-09-25 10:06:23,525 INFO L226 Difference]: Without dead ends: 661 [2020-09-25 10:06:23,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 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 10:06:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-09-25 10:06:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 605. [2020-09-25 10:06:23,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-09-25 10:06:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 715 transitions. [2020-09-25 10:06:23,651 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 715 transitions. Word has length 141 [2020-09-25 10:06:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:06:23,652 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 715 transitions. [2020-09-25 10:06:23,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:06:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 715 transitions. [2020-09-25 10:06:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 10:06:23,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:06:23,664 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 10:06:23,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:06:23,665 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:06:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:06:23,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1703001008, now seen corresponding path program 1 times [2020-09-25 10:06:23,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:06:23,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209274780] [2020-09-25 10:06:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:06:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:23,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:24,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:26,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:27,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:28,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:28,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 10:06:28,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:06:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:06:28,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:28,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:28,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:06:28,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 10:06:28,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 10:06:28,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:28,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:06:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:28,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:28,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:28,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:06:28,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:06:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:06:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:28,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:06:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:06:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:06:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:28,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:28,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:28,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:06:28,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:06:28,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:06:28,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:28,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:06:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:06:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:06:29,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209274780] [2020-09-25 10:06:29,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:06:29,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 10:06:29,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789522966] [2020-09-25 10:06:29,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:06:29,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:06:29,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:06:29,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:06:29,018 INFO L87 Difference]: Start difference. First operand 605 states and 715 transitions. Second operand 5 states. [2020-09-25 10:06:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:06:31,086 INFO L93 Difference]: Finished difference Result 1524 states and 1875 transitions. [2020-09-25 10:06:31,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:06:31,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 10:06:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:06:31,097 INFO L225 Difference]: With dead ends: 1524 [2020-09-25 10:06:31,097 INFO L226 Difference]: Without dead ends: 943 [2020-09-25 10:06:31,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 10:06:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2020-09-25 10:06:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 891. [2020-09-25 10:06:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 10:06:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1072 transitions. [2020-09-25 10:06:31,180 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1072 transitions. Word has length 158 [2020-09-25 10:06:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:06:31,181 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1072 transitions. [2020-09-25 10:06:31,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:06:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1072 transitions. [2020-09-25 10:06:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 10:06:31,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:06:31,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:06:31,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:06:31,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:06:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:06:31,187 INFO L82 PathProgramCache]: Analyzing trace with hash 127836767, now seen corresponding path program 1 times [2020-09-25 10:06:31,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:06:31,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151958116] [2020-09-25 10:06:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:06:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:31,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:31,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:32,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:32,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:33,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:35,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:36,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:36,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:36,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 10:06:36,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:06:36,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 10:06:36,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:36,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:06:36,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:06:36,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:06:36,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:36,834 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-09-25 10:06:37,095 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-09-25 10:06:37,269 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-09-25 10:06:37,430 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-09-25 10:06:37,574 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2020-09-25 10:06:37,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:06:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:37,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:37,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:06:37,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:06:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:06:37,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:37,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:06:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:37,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:06:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:06:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:06:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:06:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 10:06:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:38,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:06:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:06:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:38,314 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 10:06:38,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151958116] [2020-09-25 10:06:38,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:06:38,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 10:06:38,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315187351] [2020-09-25 10:06:38,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 10:06:38,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:06:38,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 10:06:38,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:06:38,317 INFO L87 Difference]: Start difference. First operand 891 states and 1072 transitions. Second operand 20 states. [2020-09-25 10:06:39,386 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-09-25 10:06:39,751 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-09-25 10:06:40,309 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-09-25 10:06:40,850 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-09-25 10:06:41,288 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-09-25 10:06:42,200 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-09-25 10:06:42,387 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-09-25 10:06:42,737 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-09-25 10:06:43,093 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-09-25 10:06:43,652 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-09-25 10:06:44,803 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-09-25 10:06:45,038 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-09-25 10:06:45,301 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-09-25 10:06:45,797 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-09-25 10:06:46,177 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-09-25 10:06:46,477 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-09-25 10:06:47,473 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-09-25 10:06:47,796 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-09-25 10:06:48,638 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-09-25 10:06:48,882 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-09-25 10:06:49,628 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-09-25 10:06:50,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:06:50,606 INFO L93 Difference]: Finished difference Result 2208 states and 2810 transitions. [2020-09-25 10:06:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-25 10:06:50,607 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 163 [2020-09-25 10:06:50,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:06:50,619 INFO L225 Difference]: With dead ends: 2208 [2020-09-25 10:06:50,619 INFO L226 Difference]: Without dead ends: 1341 [2020-09-25 10:06:50,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=803, Invalid=1953, Unknown=0, NotChecked=0, Total=2756 [2020-09-25 10:06:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2020-09-25 10:06:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1256. [2020-09-25 10:06:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-09-25 10:06:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1430 transitions. [2020-09-25 10:06:50,683 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1430 transitions. Word has length 163 [2020-09-25 10:06:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:06:50,684 INFO L479 AbstractCegarLoop]: Abstraction has 1256 states and 1430 transitions. [2020-09-25 10:06:50,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 10:06:50,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1430 transitions. [2020-09-25 10:06:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 10:06:50,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:06:50,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-09-25 10:06:50,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:06:50,691 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:06:50,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:06:50,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1177255036, now seen corresponding path program 1 times [2020-09-25 10:06:50,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:06:50,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824083344] [2020-09-25 10:06:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:06:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:53,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:53,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 10:06:55,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:06:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 10:06:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:55,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:06:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:06:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 10:06:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:06:56,205 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-09-25 10:06:56,463 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-09-25 10:06:56,636 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-09-25 10:06:56,769 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-09-25 10:06:57,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:06:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:06:57,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:06:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:06:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:57,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:06:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:06:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:06:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:06:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:06:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:57,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:06:57,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:06:57,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:06:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:06:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 10:06:57,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:06:57,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:06:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:06:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:06:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:06:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:06:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:06:57,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824083344] [2020-09-25 10:06:57,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:06:57,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 10:06:57,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099436880] [2020-09-25 10:06:57,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 10:06:57,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:06:57,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 10:06:57,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:06:57,727 INFO L87 Difference]: Start difference. First operand 1256 states and 1430 transitions. Second operand 20 states. [2020-09-25 10:06:59,727 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-09-25 10:07:00,005 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-09-25 10:07:00,282 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-09-25 10:07:00,624 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-09-25 10:07:00,777 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-09-25 10:07:01,361 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-09-25 10:07:01,772 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-09-25 10:07:02,299 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-09-25 10:07:02,590 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 97