/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=NARROWEST --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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:51:44,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:51:44,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:51:44,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:51:44,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:51:44,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:51:44,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:51:44,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:51:44,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:51:44,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:51:44,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:51:44,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:51:44,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:51:44,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:51:44,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:51:44,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:51:44,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:51:44,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:51:44,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:51:44,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:51:44,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:51:44,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:51:44,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:51:44,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:51:44,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:51:44,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:51:44,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:51:44,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:51:44,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:51:44,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:51:44,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:51:44,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:51:44,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:51:44,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:51:44,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:51:44,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:51:44,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:51:44,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:51:44,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:51:44,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:51:44,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:51:44,967 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 01:51:44,994 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:51:44,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:51:44,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:51:44,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:51:44,996 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:51:44,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:51:44,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:51:44,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:51:44,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:51:44,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:51:44,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:51:44,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:51:44,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:51:44,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:51:44,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:51:44,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:51:44,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:51:44,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:51:44,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:51:44,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:51:45,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:51:45,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:51:45,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:51:45,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:51:45,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:51:45,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:51:45,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:51:45,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:51:45,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:51:45,002 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:51:45,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:51:45,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:51:45,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:51:45,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:51:45,488 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:51:45,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-09-25 01:51:45,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/925a2f8e2/e0d1c2b423fb4a869bd7bc75d3fc14a9/FLAGe085c513e [2020-09-25 01:51:46,217 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:51:46,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-09-25 01:51:46,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/925a2f8e2/e0d1c2b423fb4a869bd7bc75d3fc14a9/FLAGe085c513e [2020-09-25 01:51:46,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/925a2f8e2/e0d1c2b423fb4a869bd7bc75d3fc14a9 [2020-09-25 01:51:46,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:51:46,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:51:46,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:46,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:51:46,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:51:46,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:46" (1/1) ... [2020-09-25 01:51:46,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:46, skipping insertion in model container [2020-09-25 01:51:46,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:46" (1/1) ... [2020-09-25 01:51:46,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:51:46,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:51:47,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:47,065 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:51:47,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:47,284 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:51:47,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47 WrapperNode [2020-09-25 01:51:47,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:47,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:51:47,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:51:47,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:51:47,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (1/1) ... [2020-09-25 01:51:47,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:51:47,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:51:47,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:51:47,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:51:47,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (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 01:51:47,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:51:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:51:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:51:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:51:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:51:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:51:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:51:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:51:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:51:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:51:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:51:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:51:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:51:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:51:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:51:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:51:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:51:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:51:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:51:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:51:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:51:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:51:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:51:47,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:51:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:51:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:51:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:51:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:51:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:51:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:51:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:51:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:51:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:51:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:51:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:51:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:51:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:51:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:51:48,701 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:51:48,701 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:51:48,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:48 BoogieIcfgContainer [2020-09-25 01:51:48,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:51:48,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:51:48,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:51:48,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:51:48,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:51:46" (1/3) ... [2020-09-25 01:51:48,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244fa3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:48, skipping insertion in model container [2020-09-25 01:51:48,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:47" (2/3) ... [2020-09-25 01:51:48,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244fa3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:48, skipping insertion in model container [2020-09-25 01:51:48,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:48" (3/3) ... [2020-09-25 01:51:48,719 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2020-09-25 01:51:48,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:51:48,744 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:51:48,768 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:51:48,804 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:51:48,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:51:48,804 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:51:48,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:51:48,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:51:48,805 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:51:48,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:51:48,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:51:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-09-25 01:51:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:51:48,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:48,853 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 01:51:48,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:48,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1324384437, now seen corresponding path program 1 times [2020-09-25 01:51:48,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:48,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708109303] [2020-09-25 01:51:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:49,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:52,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:51:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:51:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 01:51:54,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:51:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:51:54,633 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:54,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:54,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 01:51:54,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:54,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:54,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:54,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:54,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:54,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:54,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:54,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:54,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:51:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:54,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:51:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:54,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:54,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:54,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:54,924 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 01:51:54,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708109303] [2020-09-25 01:51:54,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:54,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:51:54,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600486345] [2020-09-25 01:51:54,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:51:54,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:54,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:51:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:54,959 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-09-25 01:51:56,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:56,222 INFO L93 Difference]: Finished difference Result 372 states and 447 transitions. [2020-09-25 01:51:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:51:56,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:51:56,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:56,261 INFO L225 Difference]: With dead ends: 372 [2020-09-25 01:51:56,261 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 01:51:56,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 01:51:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 203. [2020-09-25 01:51:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-25 01:51:56,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-25 01:51:56,442 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 142 [2020-09-25 01:51:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:56,443 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-25 01:51:56,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:51:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-25 01:51:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:51:56,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:56,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:56,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:51:56,458 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:56,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1257316615, now seen corresponding path program 1 times [2020-09-25 01:51:56,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:56,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909097118] [2020-09-25 01:51:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:56,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:56,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:01,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:01,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:52:01,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:52:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 01:52:01,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:52:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:52:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:01,894 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:01,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:02,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:52:02,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:02,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:02,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:02,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:02,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:02,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:02,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:02,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:02,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 34 [2020-09-25 01:52:02,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:52:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:02,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:02,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:52:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:02,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:02,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:02,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:02,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:02,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:02,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:02,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:02,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:02,136 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 01:52:02,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909097118] [2020-09-25 01:52:02,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:02,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:52:02,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857754054] [2020-09-25 01:52:02,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:52:02,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:02,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:52:02,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:52:02,140 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 4 states. [2020-09-25 01:52:02,729 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:52:03,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:03,244 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2020-09-25 01:52:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:52:03,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:52:03,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:03,248 INFO L225 Difference]: With dead ends: 276 [2020-09-25 01:52:03,248 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 01:52:03,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:52:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 01:52:03,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2020-09-25 01:52:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 01:52:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2020-09-25 01:52:03,286 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 143 [2020-09-25 01:52:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:03,287 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2020-09-25 01:52:03,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:52:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2020-09-25 01:52:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:52:03,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:03,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:03,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:52:03,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:03,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:03,291 INFO L82 PathProgramCache]: Analyzing trace with hash 349563729, now seen corresponding path program 1 times [2020-09-25 01:52:03,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:03,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125450324] [2020-09-25 01:52:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:03,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:52:08,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:52:08,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 01:52:08,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:52:08,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:52:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,741 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:08,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 01:52:08,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:08,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:08,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:08,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:52:08,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:08,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:52:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:52:08,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:52:08,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:52:08,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:52:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:08,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:08,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:08,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:08,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:52:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:08,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:09,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:09,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:09,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:09,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:09,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:52:09,054 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 01:52:09,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125450324] [2020-09-25 01:52:09,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:09,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:52:09,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133629679] [2020-09-25 01:52:09,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:52:09,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:09,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:52:09,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:52:09,060 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand 5 states. [2020-09-25 01:52:09,557 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:10,853 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-09-25 01:52:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:52:10,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:52:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:10,859 INFO L225 Difference]: With dead ends: 421 [2020-09-25 01:52:10,859 INFO L226 Difference]: Without dead ends: 338 [2020-09-25 01:52:10,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:52:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-25 01:52:10,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 260. [2020-09-25 01:52:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-25 01:52:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 281 transitions. [2020-09-25 01:52:10,910 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 281 transitions. Word has length 156 [2020-09-25 01:52:10,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:10,911 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 281 transitions. [2020-09-25 01:52:10,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:52:10,911 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 281 transitions. [2020-09-25 01:52:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 01:52:10,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:10,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:10,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:52:10,914 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:10,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1568584818, now seen corresponding path program 1 times [2020-09-25 01:52:10,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:10,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779403125] [2020-09-25 01:52:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:11,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:11,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:12,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:15,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:52:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 01:52:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 01:52:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,282 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:16,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:16,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 01:52:16,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:16,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:16,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:16,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:16,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:16,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:52:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:52:16,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:16,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:16,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:52:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:16,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:16,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:52:16,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:52:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:16,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:52:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:16,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:16,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:16,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:16,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:16,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:52:16,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:52:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:16,535 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 01:52:16,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779403125] [2020-09-25 01:52:16,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:16,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:52:16,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192306743] [2020-09-25 01:52:16,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:52:16,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:16,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:52:16,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:52:16,538 INFO L87 Difference]: Start difference. First operand 260 states and 281 transitions. Second operand 9 states. [2020-09-25 01:52:17,064 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:18,114 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:52:18,463 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:52:18,767 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:19,068 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:52:19,354 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:19,576 INFO L93 Difference]: Finished difference Result 447 states and 515 transitions. [2020-09-25 01:52:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:52:19,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 159 [2020-09-25 01:52:19,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:19,578 INFO L225 Difference]: With dead ends: 447 [2020-09-25 01:52:19,578 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:52:19,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:52:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:52:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:52:19,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:52:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:52:19,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-09-25 01:52:19,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:19,584 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:52:19,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:52:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:52:19,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:52:19,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:52:19,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:52:19,758 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:52:19,881 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-25 01:52:20,040 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:20,202 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:20,368 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:20,518 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:20,683 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:21,039 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:21,367 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:21,628 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:52:21,981 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:22,106 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:52:22,219 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:52:22,374 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:22,526 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:22,682 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:23,002 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:23,329 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:23,560 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:52:23,875 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:52:24,170 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:24,464 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:24,755 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:24,895 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:25,043 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:25,192 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:25,340 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:25,492 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:25,643 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:25,788 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:25,942 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:26,192 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:26,340 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:26,489 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:26,632 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:26,783 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:26,927 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:27,076 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:27,227 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:27,376 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:27,521 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:27,669 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:27,818 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:27,968 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:28,112 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:28,266 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:28,410 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:28,560 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:28,708 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:28,858 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:29,002 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:29,294 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:29,586 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:29,877 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:52:30,026 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:52:30,348 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:30,590 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:30,810 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:31,232 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-25 01:52:31,474 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:31,690 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:31,906 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:32,299 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-25 01:52:32,443 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-25 01:52:32,686 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:32,899 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:33,106 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:33,507 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-25 01:52:33,730 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:52:33,946 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:34,346 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-25 01:52:34,559 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:34,773 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:35,172 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-25 01:52:35,402 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:52:35,545 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 11 [2020-09-25 01:52:35,766 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20