/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:21:44,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:21:44,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:21:44,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:21:44,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:21:44,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:21:44,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:21:44,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:21:44,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:21:44,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:21:44,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:21:44,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:21:44,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:21:44,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:21:44,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:21:44,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:21:44,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:21:44,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:21:44,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:21:44,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:21:44,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:21:44,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:21:44,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:21:44,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:21:44,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:21:44,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:21:44,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:21:44,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:21:44,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:21:44,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:21:44,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:21:44,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:21:44,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:21:44,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:21:44,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:21:44,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:21:44,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:21:44,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:21:44,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:21:44,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:21:44,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:21:44,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:21:44,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:21:44,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:21:44,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:21:44,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:21:44,527 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:21:44,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:21:44,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:21:44,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:21:44,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:21:44,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:21:44,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:21:44,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:21:44,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:21:44,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:21:44,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:21:44,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:21:44,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:21:44,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:21:44,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:21:44,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:21:44,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:21:44,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:44,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:21:44,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:21:44,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:21:44,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:21:44,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:21:44,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:21:44,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:21:44,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:21:44,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:21:45,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:21:45,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:21:45,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:21:45,010 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:21:45,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 14:21:45,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626175030/32371df1f9844876bac407a24884578d/FLAG6ce772323 [2020-09-25 14:21:45,746 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:21:45,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 14:21:45,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626175030/32371df1f9844876bac407a24884578d/FLAG6ce772323 [2020-09-25 14:21:46,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/626175030/32371df1f9844876bac407a24884578d [2020-09-25 14:21:46,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:21:46,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:21:46,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:46,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:21:46,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:21:46,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46, skipping insertion in model container [2020-09-25 14:21:46,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:21:46,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:21:46,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:46,645 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:21:46,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:46,796 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:21:46,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46 WrapperNode [2020-09-25 14:21:46,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:46,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:21:46,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:21:46,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:21:46,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... [2020-09-25 14:21:46,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:21:46,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:21:46,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:21:46,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:21:46,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:21:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:21:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:21:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:21:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:21:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:21:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:21:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:21:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:21:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:21:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:21:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:21:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:21:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:21:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:21:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:21:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:21:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:21:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:21:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:21:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:21:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:21:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:21:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:21:47,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:21:47,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:21:47,020 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:21:47,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:21:47,020 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:21:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:21:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:21:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:21:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:47,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:47,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:21:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:21:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:21:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:21:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:21:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:21:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:21:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:21:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:21:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:21:47,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:21:48,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:21:48,289 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:21:48,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:48 BoogieIcfgContainer [2020-09-25 14:21:48,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:21:48,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:21:48,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:21:48,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:21:48,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:46" (1/3) ... [2020-09-25 14:21:48,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be252ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:48, skipping insertion in model container [2020-09-25 14:21:48,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:46" (2/3) ... [2020-09-25 14:21:48,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be252ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:48, skipping insertion in model container [2020-09-25 14:21:48,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:48" (3/3) ... [2020-09-25 14:21:48,307 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-09-25 14:21:48,318 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:21:48,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:21:48,350 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:21:48,384 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:21:48,384 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:21:48,384 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:21:48,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:21:48,385 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:21:48,385 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:21:48,385 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:21:48,385 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:21:48,414 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 14:21:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:21:48,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:48,435 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] [2020-09-25 14:21:48,435 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1955502520, now seen corresponding path program 1 times [2020-09-25 14:21:48,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:48,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852857996] [2020-09-25 14:21:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:48,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:53,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:53,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:21:53,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 14:21:53,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:53,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:21:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:21:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:21:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:21:54,317 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:54,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:54,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 14:21:54,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:54,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:21:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:21:54,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:54,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:54,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:54,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:21:54,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:21:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:21:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:54,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:21:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:54,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:54,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:54,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:54,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:54,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:54,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:54,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:54,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:21:54,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852857996] [2020-09-25 14:21:54,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:54,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:21:54,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769910830] [2020-09-25 14:21:54,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:21:54,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:54,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:21:54,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:21:54,926 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 5 states. [2020-09-25 14:21:55,592 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:56,504 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:59,065 INFO L93 Difference]: Finished difference Result 769 states and 959 transitions. [2020-09-25 14:21:59,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:21:59,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 14:21:59,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:59,114 INFO L225 Difference]: With dead ends: 769 [2020-09-25 14:21:59,114 INFO L226 Difference]: Without dead ends: 560 [2020-09-25 14:21:59,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:21:59,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-25 14:21:59,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 474. [2020-09-25 14:21:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-09-25 14:21:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 539 transitions. [2020-09-25 14:21:59,296 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 539 transitions. Word has length 142 [2020-09-25 14:21:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:59,297 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 539 transitions. [2020-09-25 14:21:59,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:21:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 539 transitions. [2020-09-25 14:21:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:21:59,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:59,303 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, 1, 1, 1, 1, 1, 1] [2020-09-25 14:21:59,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:21:59,304 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:59,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:59,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1361130743, now seen corresponding path program 1 times [2020-09-25 14:21:59,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:59,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056359847] [2020-09-25 14:21:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:59,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:00,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:00,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:22:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:22:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:22:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:04,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:22:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:22:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 14:22:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:04,680 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:04,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:04,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:04,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:04,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:04,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 14:22:04,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:04,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:22:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:05,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:05,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:05,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:05,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:05,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:22:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:22:05,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:05,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:22:05,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:05,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:05,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:05,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:05,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:22:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:05,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:05,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:05,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:22:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:05,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:05,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:05,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:05,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056359847] [2020-09-25 14:22:05,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:05,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:22:05,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476002872] [2020-09-25 14:22:05,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:22:05,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:05,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:22:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:22:05,199 INFO L87 Difference]: Start difference. First operand 474 states and 539 transitions. Second operand 10 states. [2020-09-25 14:22:05,691 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:07,333 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:07,667 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:08,051 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:08,381 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:08,691 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:22:08,993 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:09,331 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:09,875 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:11,423 INFO L93 Difference]: Finished difference Result 1429 states and 1848 transitions. [2020-09-25 14:22:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:22:11,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 14:22:11,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:11,436 INFO L225 Difference]: With dead ends: 1429 [2020-09-25 14:22:11,436 INFO L226 Difference]: Without dead ends: 1065 [2020-09-25 14:22:11,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:22:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-09-25 14:22:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 830. [2020-09-25 14:22:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-09-25 14:22:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 989 transitions. [2020-09-25 14:22:11,594 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 989 transitions. Word has length 165 [2020-09-25 14:22:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:11,595 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 989 transitions. [2020-09-25 14:22:11,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:22:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 989 transitions. [2020-09-25 14:22:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:22:11,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:11,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:11,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:22:11,600 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:11,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1279992228, now seen corresponding path program 1 times [2020-09-25 14:22:11,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:11,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097189987] [2020-09-25 14:22:11,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:11,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:11,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:16,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:16,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:22:16,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:22:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:22:16,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:16,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:22:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:22:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:22:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,032 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:17,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 14:22:17,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:22:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:17,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:17,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:17,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:17,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:17,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:17,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:17,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:17,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:22:17,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:17,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:17,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:17,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:17,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:17,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 14:22:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:22:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:22:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:17,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:22:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:22:17,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:17,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:22:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:17,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:17,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:17,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:22:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:17,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:17,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:22:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:17,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:17,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:17,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:17,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:17,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:17,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:17,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:17,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:17,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097189987] [2020-09-25 14:22:17,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:17,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:22:17,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871174991] [2020-09-25 14:22:17,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:22:17,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:17,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:22:17,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:22:17,559 INFO L87 Difference]: Start difference. First operand 830 states and 989 transitions. Second operand 6 states. [2020-09-25 14:22:18,088 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:18,859 INFO L93 Difference]: Finished difference Result 1140 states and 1424 transitions. [2020-09-25 14:22:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:22:18,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-09-25 14:22:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:18,860 INFO L225 Difference]: With dead ends: 1140 [2020-09-25 14:22:18,861 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:22:18,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:22:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:22:18,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:22:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:22:18,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:22:18,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 14:22:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:18,866 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:22:18,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:22:18,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:22:18,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:22:18,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:22:18,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:22:19,061 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:19,236 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:19,529 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:19,889 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:20,165 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:20,495 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:20,758 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:21,103 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:21,368 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:21,530 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:21,642 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:21,799 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:21,973 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:22,133 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:22,243 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:22,397 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:22,551 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:22,704 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:22,899 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:23,041 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:23,361 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:23,682 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:23,931 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:24,189 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:24,509 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:24,759 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:25,025 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:25,285 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:25,536 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:25,787 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:26,043 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:26,362 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:26,683 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:26,841 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:27,007 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:27,165 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:27,320 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:27,474 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:27,622 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:27,775 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:27,928 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:28,078 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:28,240 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:28,395 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:28,544 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:28,693 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:28,847 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:29,000 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:29,153 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:29,308 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:29,468 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:29,616 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:29,770 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:29,922 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:30,074 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:30,227 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:30,380 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:30,533 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:30,687 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:30,839 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:30,999 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:31,107 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:31,260 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:31,413 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:31,565 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:31,718 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:31,870 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:32,019 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:32,172 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:32,321 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:32,579 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:32,897 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:33,152 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:33,478 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:33,730 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:34,053 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:22:34,319 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 14:22:34,468 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:34,621 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:34,770 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:34,923 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:35,077 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:35,230 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:35,383 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:35,536 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:35,693 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:35,849 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:35,959 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:36,113 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:36,269 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:36,378 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 14:22:36,539 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:36,692 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:36,849 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:37,009 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:37,185 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:37,346 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:37,663 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:37,980 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:38,296 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:38,613 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:38,930 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:39,248 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:39,569 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:39,887 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:40,204 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:22:40,521 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190