/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:34:27,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:34:27,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:34:27,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:34:27,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:34:27,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:34:27,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:34:27,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:34:27,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:34:27,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:34:27,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:34:27,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:34:27,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:34:27,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:34:27,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:34:27,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:34:27,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:34:27,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:34:27,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:34:27,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:34:27,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:34:27,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:34:27,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:34:27,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:34:27,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:34:27,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:34:27,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:34:27,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:34:27,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:34:27,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:34:27,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:34:27,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:34:27,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:34:27,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:34:27,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:34:27,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:34:27,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:34:27,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:34:27,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:34:27,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:34:27,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:34:28,000 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 08:34:28,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:34:28,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:34:28,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:34:28,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:34:28,052 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:34:28,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:34:28,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:34:28,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:34:28,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:34:28,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:34:28,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:34:28,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:34:28,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:34:28,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:34:28,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:34:28,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:34:28,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:34:28,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:34:28,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:34:28,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:34:28,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:34:28,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:34:28,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:34:28,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:34:28,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:34:28,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:34:28,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:34:28,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:34:28,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:34:28,563 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:34:28,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2020-09-25 08:34:28,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0a57a687/d435072498eb43dd856d6ba991b69a0c/FLAG5bcbdc719 [2020-09-25 08:34:29,201 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:34:29,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2020-09-25 08:34:29,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0a57a687/d435072498eb43dd856d6ba991b69a0c/FLAG5bcbdc719 [2020-09-25 08:34:29,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0a57a687/d435072498eb43dd856d6ba991b69a0c [2020-09-25 08:34:29,500 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:34:29,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:34:29,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:29,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:34:29,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:34:29,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:29" (1/1) ... [2020-09-25 08:34:29,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7503bbdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:29, skipping insertion in model container [2020-09-25 08:34:29,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:29" (1/1) ... [2020-09-25 08:34:29,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:34:29,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:34:30,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:30,231 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:34:30,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:30,349 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:34:30,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30 WrapperNode [2020-09-25 08:34:30,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:30,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:34:30,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:34:30,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:34:30,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (1/1) ... [2020-09-25 08:34:30,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:34:30,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:34:30,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:34:30,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:34:30,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (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 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:34:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:34:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:34:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:34:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:34:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:34:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:34:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:34:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:34:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:34:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:34:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:34:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:34:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:34:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:34:30,529 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:34:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:34:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:34:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:34:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:34:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:34:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:34:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:34:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:34:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:34:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:34:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:34:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:34:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:34:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:34:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:34:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:34:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:34:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:34:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:34:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:34:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:34:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:34:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:34:31,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:34:31,764 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:34:31,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:31 BoogieIcfgContainer [2020-09-25 08:34:31,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:34:31,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:34:31,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:34:31,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:34:31,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:34:29" (1/3) ... [2020-09-25 08:34:31,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e329993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:31, skipping insertion in model container [2020-09-25 08:34:31,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:30" (2/3) ... [2020-09-25 08:34:31,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e329993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:31, skipping insertion in model container [2020-09-25 08:34:31,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:31" (3/3) ... [2020-09-25 08:34:31,783 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2020-09-25 08:34:31,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:34:31,806 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:34:31,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:34:31,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:34:31,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:34:31,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:34:31,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:34:31,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:34:31,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:34:31,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:34:31,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:34:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 08:34:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:34:31,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:31,900 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 08:34:31,901 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:31,909 INFO L82 PathProgramCache]: Analyzing trace with hash 253748862, now seen corresponding path program 1 times [2020-09-25 08:34:31,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:31,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113534168] [2020-09-25 08:34:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:32,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:33,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:36,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:34:37,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:34:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 08:34:37,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:37,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:34:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:34:37,846 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:37,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:38,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 08:34:38,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:38,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:38,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:34:38,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:38,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:38,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:38,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:38,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:38,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:38,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:34:38,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:38,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:38,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:34:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:34:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:38,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:34:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:38,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:38,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:34:38,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:38,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:38,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:38,348 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 08:34:38,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113534168] [2020-09-25 08:34:38,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:38,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:34:38,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121937468] [2020-09-25 08:34:38,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:34:38,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:38,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:34:38,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:38,398 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-25 08:34:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:39,919 INFO L93 Difference]: Finished difference Result 436 states and 522 transitions. [2020-09-25 08:34:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:34:39,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:34:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:39,951 INFO L225 Difference]: With dead ends: 436 [2020-09-25 08:34:39,952 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 08:34:39,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 08:34:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-25 08:34:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 08:34:40,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 253 transitions. [2020-09-25 08:34:40,113 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 253 transitions. Word has length 142 [2020-09-25 08:34:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:40,114 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 253 transitions. [2020-09-25 08:34:40,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:34:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 253 transitions. [2020-09-25 08:34:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:34:40,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:40,120 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 08:34:40,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:34:40,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:40,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash 548958349, now seen corresponding path program 1 times [2020-09-25 08:34:40,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:40,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342460005] [2020-09-25 08:34:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:41,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:43,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:34:45,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:34:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:34:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:34:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:34:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,555 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 08:34:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:45,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:45,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:45,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:34:45,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:45,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:45,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:34:45,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:45,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:45,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:34:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:45,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:45,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:34:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:45,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:45,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:45,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:45,790 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 08:34:45,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342460005] [2020-09-25 08:34:45,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:45,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:34:45,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125781616] [2020-09-25 08:34:45,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:34:45,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:45,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:34:45,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:34:45,796 INFO L87 Difference]: Start difference. First operand 234 states and 253 transitions. Second operand 4 states. [2020-09-25 08:34:46,486 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:34:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:47,242 INFO L93 Difference]: Finished difference Result 343 states and 385 transitions. [2020-09-25 08:34:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:34:47,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:34:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:47,250 INFO L225 Difference]: With dead ends: 343 [2020-09-25 08:34:47,253 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 08:34:47,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:34:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 08:34:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-25 08:34:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 08:34:47,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 240 transitions. [2020-09-25 08:34:47,310 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 240 transitions. Word has length 143 [2020-09-25 08:34:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:47,311 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 240 transitions. [2020-09-25 08:34:47,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:34:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 240 transitions. [2020-09-25 08:34:47,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:34:47,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:47,314 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 08:34:47,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:34:47,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:47,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:47,315 INFO L82 PathProgramCache]: Analyzing trace with hash 512450906, now seen corresponding path program 1 times [2020-09-25 08:34:47,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:47,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689786689] [2020-09-25 08:34:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:47,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:48,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:48,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:34:52,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:34:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 08:34:52,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:34:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:34:52,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,709 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:52,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 08:34:52,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:52,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:52,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:52,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:34:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:52,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:34:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:34:52,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:34:52,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:34:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:34:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:34:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:52,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:52,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:34:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:52,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:52,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:53,019 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 08:34:53,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689786689] [2020-09-25 08:34:53,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:53,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:34:53,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895443595] [2020-09-25 08:34:53,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:34:53,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:53,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:34:53,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:34:53,024 INFO L87 Difference]: Start difference. First operand 224 states and 240 transitions. Second operand 5 states. [2020-09-25 08:34:53,527 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:34:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:55,191 INFO L93 Difference]: Finished difference Result 518 states and 601 transitions. [2020-09-25 08:34:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:34:55,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:34:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:55,197 INFO L225 Difference]: With dead ends: 518 [2020-09-25 08:34:55,197 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 08:34:55,199 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 08:34:55,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 08:34:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-25 08:34:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-25 08:34:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2020-09-25 08:34:55,263 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 156 [2020-09-25 08:34:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:55,264 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2020-09-25 08:34:55,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:34:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2020-09-25 08:34:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:34:55,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:55,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:34:55,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:34:55,267 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:55,268 INFO L82 PathProgramCache]: Analyzing trace with hash 16391841, now seen corresponding path program 1 times [2020-09-25 08:34:55,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:55,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439072535] [2020-09-25 08:34:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:35:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:35:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 08:35:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:00,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:35:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 08:35:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 08:35:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:00,773 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:01,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 08:35:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:35:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:01,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:01,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:01,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:01,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:35:01,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:01,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:35:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:01,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:01,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:35:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:35:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:35:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:35:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:35:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:01,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 08:35:01,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:35:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:35:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:01,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:01,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:01,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:01,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:01,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:01,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:35:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:01,444 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 08:35:01,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439072535] [2020-09-25 08:35:01,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:01,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:35:01,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155093096] [2020-09-25 08:35:01,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:35:01,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:01,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:35:01,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:35:01,448 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand 9 states. [2020-09-25 08:35:02,168 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:35:03,855 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 08:35:04,502 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-25 08:35:04,898 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:05,252 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:35:05,561 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:05,902 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 08:35:06,221 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:06,694 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:07,461 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:35:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:07,926 INFO L93 Difference]: Finished difference Result 868 states and 1041 transitions. [2020-09-25 08:35:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:35:07,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:35:07,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:07,935 INFO L225 Difference]: With dead ends: 868 [2020-09-25 08:35:07,935 INFO L226 Difference]: Without dead ends: 650 [2020-09-25 08:35:07,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 08:35:07,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-09-25 08:35:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 519. [2020-09-25 08:35:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-09-25 08:35:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 582 transitions. [2020-09-25 08:35:08,030 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 582 transitions. Word has length 161 [2020-09-25 08:35:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:08,031 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 582 transitions. [2020-09-25 08:35:08,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:35:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 582 transitions. [2020-09-25 08:35:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:35:08,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:35:08,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:35:08,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:35:08,034 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:35:08,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:35:08,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1291056650, now seen corresponding path program 1 times [2020-09-25 08:35:08,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:35:08,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20220364] [2020-09-25 08:35:08,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:35:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:08,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:08,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:10,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:10,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:35:10,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:35:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2846 [2020-09-25 08:35:10,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:10,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:35:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:35:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:35:10,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,245 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:35:11,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:35:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:35:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 08:35:11,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:11,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:35:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:11,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:11,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:35:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:11,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:35:11,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:11,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:35:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:11,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:35:11,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:35:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:35:11,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:11,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:11,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:35:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:35:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:35:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:35:11,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:35:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:35:11,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:35:11,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:11,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:35:11,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:35:11,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:35:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:11,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:35:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:35:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:35:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:35:11,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:35:11,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:35:11,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:35:11,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:35:11,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:35:11,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:35:11,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:35:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:35:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:35:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:35:11,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:35:11,524 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 08:35:11,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20220364] [2020-09-25 08:35:11,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:35:11,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:35:11,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485626505] [2020-09-25 08:35:11,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:35:11,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:35:11,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:35:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:35:11,526 INFO L87 Difference]: Start difference. First operand 519 states and 582 transitions. Second operand 10 states. [2020-09-25 08:35:12,060 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:13,434 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:13,765 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:35:14,109 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:14,469 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:35:14,785 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:15,137 INFO L93 Difference]: Finished difference Result 934 states and 1125 transitions. [2020-09-25 08:35:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:35:15,138 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-25 08:35:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:15,139 INFO L225 Difference]: With dead ends: 934 [2020-09-25 08:35:15,139 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:35:15,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:35:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:35:15,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:35:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:35:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:35:15,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 08:35:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:15,143 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:35:15,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:35:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:35:15,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:35:15,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:35:15,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:35:15,334 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:15,507 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:15,686 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:15,862 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:16,157 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 7 [2020-09-25 08:35:16,339 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 190