/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=WIDESTAMONGSMALL --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/product-lines/minepump_spec5_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:12:32,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:12:32,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:12:32,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:12:32,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:12:32,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:12:32,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:12:32,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:12:32,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:12:32,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:12:32,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:12:32,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:12:32,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:12:32,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:12:32,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:12:32,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:12:32,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:12:32,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:12:32,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:12:32,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:12:32,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:12:32,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:12:32,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:12:32,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:12:32,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:12:32,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:12:32,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:12:32,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:12:32,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:12:32,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:12:32,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:12:32,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:12:32,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:12:32,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:12:32,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:12:32,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:12:32,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:12:32,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:12:32,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:12:32,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:12:32,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:12:32,606 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 04:12:32,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:12:32,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:12:32,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:12:32,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:12:32,636 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:12:32,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:12:32,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:12:32,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:12:32,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:12:32,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:12:32,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:12:32,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:12:32,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:12:32,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:12:32,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:12:32,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:12:32,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:12:32,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:12:32,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:12:32,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:12:32,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:12:32,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:12:32,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:12:32,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:12:32,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:12:32,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:12:32,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:12:32,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:12:32,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:12:32,641 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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:12:33,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:12:33,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:12:33,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:12:33,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:12:33,159 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:12:33,160 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 04:12:33,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622d0fba9/36010140a8694d9aa44e07fefa82b951/FLAGf37b1d835 [2020-09-25 04:12:33,903 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:12:33,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 04:12:33,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622d0fba9/36010140a8694d9aa44e07fefa82b951/FLAGf37b1d835 [2020-09-25 04:12:34,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622d0fba9/36010140a8694d9aa44e07fefa82b951 [2020-09-25 04:12:34,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:12:34,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:12:34,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:12:34,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:12:34,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:12:34,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:34,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34, skipping insertion in model container [2020-09-25 04:12:34,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:34,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:12:34,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:12:34,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:12:34,622 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:12:34,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:12:34,895 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:12:34,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34 WrapperNode [2020-09-25 04:12:34,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:12:34,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:12:34,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:12:34,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:12:34,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:34,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:34,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:34,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:35,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:35,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:35,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (1/1) ... [2020-09-25 04:12:35,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:12:35,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:12:35,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:12:35,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:12:35,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (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 04:12:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:12:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:12:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:12:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:12:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:12:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:12:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:12:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:12:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:12:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:12:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:12:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:12:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:12:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:12:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:12:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:12:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:12:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:12:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:12:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:12:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:12:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:12:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:12:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:12:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:12:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:12:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:12:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:12:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:12:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:12:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:12:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:12:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:12:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:12:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:12:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:12:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:12:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:12:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:12:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:12:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:12:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:12:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:12:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:12:36,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:12:36,352 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:12:36,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:12:36 BoogieIcfgContainer [2020-09-25 04:12:36,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:12:36,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:12:36,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:12:36,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:12:36,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:12:34" (1/3) ... [2020-09-25 04:12:36,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c99e06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:12:36, skipping insertion in model container [2020-09-25 04:12:36,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:12:34" (2/3) ... [2020-09-25 04:12:36,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c99e06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:12:36, skipping insertion in model container [2020-09-25 04:12:36,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:12:36" (3/3) ... [2020-09-25 04:12:36,370 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2020-09-25 04:12:36,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:12:36,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:12:36,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:12:36,448 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:12:36,448 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:12:36,448 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:12:36,448 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:12:36,449 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:12:36,449 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:12:36,449 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:12:36,449 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:12:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-25 04:12:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:12:36,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:12:36,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:12:36,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:12:36,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:12:36,508 INFO L82 PathProgramCache]: Analyzing trace with hash -502904586, now seen corresponding path program 1 times [2020-09-25 04:12:36,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:12:36,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554661877] [2020-09-25 04:12:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:12:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:37,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:37,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:38,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:38,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:41,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:41,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 04:12:41,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:12:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-09-25 04:12:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:12:42,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 04:12:42,467 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:12:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:12:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 04:12:42,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:12:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:42,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:12:42,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:12:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:42,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:12:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:12:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:42,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:12:42,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:12:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:42,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:12:42,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:12:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:12:42,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:42,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:12:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:12:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:12:42,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:12:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:42,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:12:42,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:42,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 04:12:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:42,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:42,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 04:12:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:42,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:42,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:42,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:42,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:12:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:12:42,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554661877] [2020-09-25 04:12:42,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:12:42,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:12:42,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892332858] [2020-09-25 04:12:42,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:12:42,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:12:42,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:12:42,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:12:42,922 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-25 04:12:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:12:44,471 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-25 04:12:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:12:44,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 04:12:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:12:44,517 INFO L225 Difference]: With dead ends: 456 [2020-09-25 04:12:44,517 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 04:12:44,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:12:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 04:12:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-25 04:12:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 04:12:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-25 04:12:44,746 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-25 04:12:44,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:12:44,749 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-25 04:12:44,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:12:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-25 04:12:44,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:12:44,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:12:44,769 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:12:44,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:12:44,770 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:12:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:12:44,770 INFO L82 PathProgramCache]: Analyzing trace with hash -445941209, now seen corresponding path program 1 times [2020-09-25 04:12:44,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:12:44,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88488665] [2020-09-25 04:12:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:12:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:44,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:46,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:47,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:48,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:49,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:49,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 04:12:49,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:12:49,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 04:12:49,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:49,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:12:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:12:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:12:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,212 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:12:50,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:12:50,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 04:12:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:12:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:50,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:12:50,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:12:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:50,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:12:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:50,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:12:50,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:12:50,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:12:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:50,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:50,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:12:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:12:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:12:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:12:50,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:12:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:12:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:50,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:12:50,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:12:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:12:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:12:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:50,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:50,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:50,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:50,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:50,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:50,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:50,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:12:50,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88488665] [2020-09-25 04:12:50,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:12:50,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:12:50,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214246029] [2020-09-25 04:12:50,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:12:50,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:12:50,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:12:50,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:12:50,517 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-25 04:12:51,184 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:12:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:12:52,052 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-25 04:12:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:12:52,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 04:12:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:12:52,059 INFO L225 Difference]: With dead ends: 375 [2020-09-25 04:12:52,059 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 04:12:52,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:12:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 04:12:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-25 04:12:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 04:12:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 04:12:52,130 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-25 04:12:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:12:52,132 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 04:12:52,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:12:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 04:12:52,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 04:12:52,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:12:52,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:12:52,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:12:52,136 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:12:52,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:12:52,136 INFO L82 PathProgramCache]: Analyzing trace with hash -292418968, now seen corresponding path program 1 times [2020-09-25 04:12:52,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:12:52,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972771598] [2020-09-25 04:12:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:12:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:52,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:52,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 04:12:57,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:12:57,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 04:12:57,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:12:57,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 04:12:57,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:12:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,515 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:12:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:12:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:12:57,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:12:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:57,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:12:57,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:12:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:57,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:12:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:12:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:57,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:57,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:12:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:12:57,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:12:57,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:12:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:12:57,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:57,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:12:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:12:57,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:12:57,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:12:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:12:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:12:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:12:57,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:12:57,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:12:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:12:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:12:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:57,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:57,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:12:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:12:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:57,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:57,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 04:12:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:12:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:12:57,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:12:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:12:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:12:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:12:57,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:12:57,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:12:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:12:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:12:57,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:12:57,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:12:57,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:12:57,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972771598] [2020-09-25 04:12:57,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:12:57,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:12:57,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157220928] [2020-09-25 04:12:57,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:12:57,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:12:57,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:12:57,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:12:57,802 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-25 04:12:58,276 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:12:59,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:12:59,859 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-25 04:12:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:12:59,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 04:12:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:12:59,864 INFO L225 Difference]: With dead ends: 555 [2020-09-25 04:12:59,864 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 04:12:59,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:12:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 04:12:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-25 04:12:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 04:12:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-25 04:12:59,954 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-25 04:12:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:12:59,957 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-25 04:12:59,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:12:59,957 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-25 04:12:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 04:12:59,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:12:59,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:12:59,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:12:59,960 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:12:59,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:12:59,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1020289759, now seen corresponding path program 1 times [2020-09-25 04:12:59,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:12:59,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134026982] [2020-09-25 04:12:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:13:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:00,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:00,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 04:13:05,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:13:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 04:13:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:13:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 04:13:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:13:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,539 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:13:05,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:13:05,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:13:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:05,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:05,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:13:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:05,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:05,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:13:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:05,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:05,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:13:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:13:05,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:05,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:13:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:13:05,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:13:05,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 04:13:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:13:05,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:05,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:13:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 04:13:05,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:05,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:13:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:05,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:13:05,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:13:05,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:13:05,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 04:13:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:05,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:13:05,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:13:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:13:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 04:13:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:13:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:13:05,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:13:05,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:13:05,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:13:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:13:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:13:05,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:13:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:13:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:13:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:13:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:13:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:13:05,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134026982] [2020-09-25 04:13:05,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:13:05,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:13:05,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715704293] [2020-09-25 04:13:05,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:13:05,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:13:05,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:13:05,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:13:05,862 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-25 04:13:06,607 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:07,684 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:08,032 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:13:09,023 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:13:09,376 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 04:13:09,700 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 04:13:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:13:09,783 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-25 04:13:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:13:09,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 04:13:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:13:09,786 INFO L225 Difference]: With dead ends: 580 [2020-09-25 04:13:09,786 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:13:09,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:13:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:13:09,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:13:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:13:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:13:09,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 04:13:09,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:13:09,794 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:13:09,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:13:09,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:13:09,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:13:09,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:13:09,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:13:10,015 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:10,221 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:10,410 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:10,714 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-25 04:13:10,873 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:11,037 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:11,206 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:11,371 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:11,535 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:11,706 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:12,015 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 04:13:12,324 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 04:13:12,637 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 04:13:12,943 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 04:13:13,087 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:13,248 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:13,407 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:13,565 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:13,724 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:13,882 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:14,038 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:14,196 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:14,354 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:14,511 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:14,664 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:14,821 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:14,992 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:15,155 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:15,308 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:15,469 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:15,625 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:15,783 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:15,940 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:16,097 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:16,257 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:16,415 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:16,522 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 04:13:16,675 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:16,833 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:16,990 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:17,148 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:17,305 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:17,459 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:17,616 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:17,775 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:17,880 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 04:13:18,057 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:18,214 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:18,373 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:18,481 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 04:13:18,642 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:18,794 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:18,954 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:19,059 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 04:13:19,218 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:19,371 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:19,531 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:19,691 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:19,948 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-25 04:13:20,108 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:13:20,267 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:20,426 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:20,583 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:20,741 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:20,904 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:13:21,349 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-25 04:13:21,598 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 04:13:21,768 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 04:13:21,997 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 04:13:22,229 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 04:13:22,431 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 10 [2020-09-25 04:13:22,697 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:13:22,940 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 04:13:23,124 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1