/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=SMALLEST --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_spec1_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:53:21,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:53:21,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:53:21,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:53:21,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:53:21,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:53:21,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:53:21,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:53:21,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:53:21,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:53:21,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:53:21,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:53:21,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:53:21,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:53:21,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:53:21,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:53:21,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:53:21,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:53:21,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:53:21,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:53:21,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:53:21,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:53:21,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:53:21,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:53:21,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:53:21,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:53:21,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:53:21,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:53:21,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:53:21,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:53:21,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:53:21,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:53:21,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:53:21,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:53:21,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:53:21,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:53:21,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:53:21,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:53:21,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:53:21,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:53:21,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:53:21,172 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 [2020-09-24 17:53:21,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:53:21,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:53:21,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:53:21,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:53:21,231 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:53:21,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:53:21,232 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:53:21,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:53:21,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:53:21,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:53:21,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:53:21,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:53:21,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:53:21,235 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:53:21,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:53:21,235 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:53:21,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:53:21,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:53:21,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:53:21,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:53:21,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:53:21,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:53:21,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:53:21,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:53:21,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:53:21,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:53:21,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:53:21,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:53:21,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:53:21,238 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:53:22,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:53:22,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:53:22,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:53:22,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:53:22,449 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:53:22,450 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2020-09-24 17:53:22,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45b800813/d3f3ec049ef44a3ab63e395b7f9af2e3/FLAG64e40b7b9 [2020-09-24 17:53:23,172 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:53:23,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2020-09-24 17:53:23,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45b800813/d3f3ec049ef44a3ab63e395b7f9af2e3/FLAG64e40b7b9 [2020-09-24 17:53:23,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/45b800813/d3f3ec049ef44a3ab63e395b7f9af2e3 [2020-09-24 17:53:23,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:53:23,472 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:53:23,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:23,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:53:23,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:53:23,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:23, skipping insertion in model container [2020-09-24 17:53:23,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:53:23" (1/1) ... [2020-09-24 17:53:23,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:53:23,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:53:23,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:23,981 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:53:24,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:53:24,244 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:53:24,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24 WrapperNode [2020-09-24 17:53:24,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:53:24,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:53:24,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:53:24,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (1/1) ... [2020-09-24 17:53:24,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:53:24,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:53:24,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:53:24,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:53:24,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (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 [2020-09-24 17:53:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:53:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:53:24,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:53:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:53:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:53:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:53:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:53:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:53:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:53:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:53:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:53:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:53:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:53:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:53:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:53:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:53:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:53:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:53:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:53:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:53:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:53:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:53:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:53:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:53:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:53:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:53:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:53:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:53:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:53:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:53:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:53:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:53:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:53:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:53:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:53:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:53:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:53:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:53:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:53:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:53:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:53:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:53:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:53:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:53:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:53:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:53:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:53:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:53:25,625 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:53:25,625 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:53:25,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25 BoogieIcfgContainer [2020-09-24 17:53:25,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:53:25,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:53:25,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:53:25,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:53:25,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:53:23" (1/3) ... [2020-09-24 17:53:25,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244fa3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:53:24" (2/3) ... [2020-09-24 17:53:25,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244fa3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:53:25, skipping insertion in model container [2020-09-24 17:53:25,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:53:25" (3/3) ... [2020-09-24 17:53:25,645 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2020-09-24 17:53:25,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:53:25,672 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:53:25,698 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:53:25,733 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:53:25,733 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:53:25,733 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:53:25,734 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:53:25,734 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:53:25,734 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:53:25,734 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:53:25,734 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:53:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states. [2020-09-24 17:53:25,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:53:25,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:25,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:25,787 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:25,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:25,796 INFO L82 PathProgramCache]: Analyzing trace with hash 754184275, now seen corresponding path program 1 times [2020-09-24 17:53:25,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:25,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708109303] [2020-09-24 17:53:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:26,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:26,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:27,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:28,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:30,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:31,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:31,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:53:31,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:31,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 17:53:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:53:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:53:31,934 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:31,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:31,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:32,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 17:53:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:32,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:32,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:32,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:53:32,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:53:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:53:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:32,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:32,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:32,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:32,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:32,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:53:32,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:32,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708109303] [2020-09-24 17:53:32,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:32,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:53:32,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542684037] [2020-09-24 17:53:32,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:53:32,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:32,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:53:32,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:32,322 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 3 states. [2020-09-24 17:53:33,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:33,748 INFO L93 Difference]: Finished difference Result 372 states and 447 transitions. [2020-09-24 17:53:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:53:33,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:53:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:33,780 INFO L225 Difference]: With dead ends: 372 [2020-09-24 17:53:33,781 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 17:53:33,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:53:33,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 17:53:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 203. [2020-09-24 17:53:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-24 17:53:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-24 17:53:33,887 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 142 [2020-09-24 17:53:33,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:33,888 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-24 17:53:33,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:53:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-24 17:53:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:53:33,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:33,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:33,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:53:33,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:33,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1438488407, now seen corresponding path program 1 times [2020-09-24 17:53:33,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:33,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702653118] [2020-09-24 17:53:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:34,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:35,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:53:39,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:53:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 17:53:39,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:53:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:53:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,390 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 17:53:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:39,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:39,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:39,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:53:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:53:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:39,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702653118] [2020-09-24 17:53:39,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:39,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:53:39,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623647102] [2020-09-24 17:53:39,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:53:39,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:39,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:53:39,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:53:39,670 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 4 states. [2020-09-24 17:53:40,357 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:53:41,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:41,004 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2020-09-24 17:53:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:53:41,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:53:41,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:41,011 INFO L225 Difference]: With dead ends: 276 [2020-09-24 17:53:41,011 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 17:53:41,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 17:53:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2020-09-24 17:53:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 17:53:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2020-09-24 17:53:41,093 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 143 [2020-09-24 17:53:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:41,094 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2020-09-24 17:53:41,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:53:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2020-09-24 17:53:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:53:41,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:41,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:41,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:53:41,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:41,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:41,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1072023395, now seen corresponding path program 1 times [2020-09-24 17:53:41,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:41,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634542540] [2020-09-24 17:53:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:42,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:53:46,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:53:46,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-24 17:53:46,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:53:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:53:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,518 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:46,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:46,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 17:53:46,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:46,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:53:46,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:46,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:53:46,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:46,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:53:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:53:46,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:46,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:46,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:53:46,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:53:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:46,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:53:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:46,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:46,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:53:46,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:46,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:46,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:53:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:46,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634542540] [2020-09-24 17:53:46,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:46,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:53:46,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058877700] [2020-09-24 17:53:46,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:53:46,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:46,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:53:46,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:53:46,768 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand 5 states. [2020-09-24 17:53:47,273 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:53:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:48,559 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-09-24 17:53:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:53:48,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:53:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:48,564 INFO L225 Difference]: With dead ends: 421 [2020-09-24 17:53:48,564 INFO L226 Difference]: Without dead ends: 338 [2020-09-24 17:53:48,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:53:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-24 17:53:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 260. [2020-09-24 17:53:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 17:53:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 281 transitions. [2020-09-24 17:53:48,615 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 281 transitions. Word has length 156 [2020-09-24 17:53:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:48,616 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 281 transitions. [2020-09-24 17:53:48,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:53:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 281 transitions. [2020-09-24 17:53:48,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 17:53:48,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:53:48,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:53:48,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:53:48,619 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:53:48,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:53:48,619 INFO L82 PathProgramCache]: Analyzing trace with hash 209739934, now seen corresponding path program 1 times [2020-09-24 17:53:48,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:53:48,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030928823] [2020-09-24 17:53:48,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:53:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:48,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:53,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:53,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 17:53:53,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:53:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 17:53:53,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:53,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:53:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 17:53:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 17:53:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,018 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:53:54,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:53:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:53:54,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 17:53:54,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:53:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:53:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:53:54,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:53:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:54,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:53:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:53:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:53:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:53:54,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:53:54,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:53:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:53:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:53:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:53:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:53:54,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:53:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 17:53:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:53:54,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:53:54,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:54,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 17:53:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:53:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:53:54,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:53:54,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:53:54,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:53:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 17:53:54,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:53:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:53:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:53:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:53:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:53:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:53:54,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030928823] [2020-09-24 17:53:54,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:53:54,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:53:54,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846325407] [2020-09-24 17:53:54,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:53:54,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:53:54,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:53:54,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:53:54,314 INFO L87 Difference]: Start difference. First operand 260 states and 281 transitions. Second operand 9 states. [2020-09-24 17:53:54,858 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:53:55,966 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:56,303 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:53:56,624 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:53:56,960 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 17:53:57,274 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:53:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:53:57,499 INFO L93 Difference]: Finished difference Result 447 states and 515 transitions. [2020-09-24 17:53:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:53:57,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-24 17:53:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:53:57,501 INFO L225 Difference]: With dead ends: 447 [2020-09-24 17:53:57,501 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:53:57,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:53:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:53:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:53:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:53:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:53:57,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-09-24 17:53:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:53:57,505 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:53:57,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:53:57,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:53:57,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:53:57,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:53:57,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:53:57,664 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:53:57,791 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:53:57,955 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,123 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,285 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,460 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:58,721 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-24 17:53:58,879 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:53:59,206 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:53:59,530 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:53:59,852 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:54:00,095 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-24 17:54:00,419 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:54:00,752 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:54:01,070 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 17:54:01,311 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-24 17:54:01,559 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-24 17:54:01,660 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:54:01,814 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:02,121 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:02,429 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:02,739 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:02,878 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:03,032 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:03,185 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:03,335 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:03,493 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:03,646 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:03,799 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:03,948 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:04,096 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:04,250 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,404 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,553 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:04,707 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:04,860 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,014 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,162 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:05,315 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,466 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:05,623 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,776 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:05,928 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,087 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,235 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:06,391 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,497 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-24 17:54:06,655 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,809 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:06,963 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,112 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:07,265 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:07,571 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:07,877 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:08,183 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-24 17:54:08,331 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:08,485 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:08,775 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:08,957 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:09,165 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:09,379 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:09,759 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-24 17:54:10,139 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-24 17:54:10,393 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:10,609 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 10 [2020-09-24 17:54:10,882 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:11,105 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-24 17:54:11,263 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 17:54:11,594 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-24 17:54:11,788 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 17:54:12,000 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 17:54:12,418 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-09-24 17:54:12,629 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1