/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=HIGHLEXORDER --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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:29:07,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:29:07,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:29:07,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:29:07,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:29:07,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:29:07,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:29:07,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:29:07,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:29:07,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:29:07,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:29:07,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:29:07,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:29:07,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:29:07,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:29:07,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:29:07,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:29:07,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:29:07,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:29:07,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:29:07,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:29:07,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:29:07,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:29:07,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:29:07,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:29:07,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:29:07,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:29:07,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:29:07,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:29:07,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:29:07,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:29:07,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:29:07,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:29:07,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:29:07,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:29:07,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:29:07,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:29:07,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:29:07,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:29:07,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:29:07,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:29:07,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:29:07,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:29:07,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:29:07,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:29:07,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:29:07,528 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:29:07,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:29:07,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:29:07,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:29:07,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:29:07,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:29:07,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:29:07,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:29:07,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:29:07,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:29:07,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:29:07,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:29:07,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:29:07,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:29:07,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:29:07,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:29:07,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:29:07,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:07,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:29:07,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:29:07,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:29:07,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:29:07,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:29:07,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:29:07,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:29:07,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:29:08,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:29:08,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:29:08,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:29:08,056 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:29:08,057 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:29:08,058 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-24 22:29:08,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/657bd64cb/de9e8f92eb24418095cb4b18e1ab6dd5/FLAGda9f92fdb [2020-09-24 22:29:08,775 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:29:08,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-24 22:29:08,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/657bd64cb/de9e8f92eb24418095cb4b18e1ab6dd5/FLAGda9f92fdb [2020-09-24 22:29:08,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/657bd64cb/de9e8f92eb24418095cb4b18e1ab6dd5 [2020-09-24 22:29:09,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:29:09,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:29:09,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:09,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:29:09,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:29:09,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:08" (1/1) ... [2020-09-24 22:29:09,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09, skipping insertion in model container [2020-09-24 22:29:09,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:08" (1/1) ... [2020-09-24 22:29:09,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:29:09,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:29:09,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:09,630 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:29:09,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:09,799 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:29:09,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09 WrapperNode [2020-09-24 22:29:09,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:09,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:29:09,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:29:09,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:29:09,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... [2020-09-24 22:29:09,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:29:09,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:29:09,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:29:09,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:29:09,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:29:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:29:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:29:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:29:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:29:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:29:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:29:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:29:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:29:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:29:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:29:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:29:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:29:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:29:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:29:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:29:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:29:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:29:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:29:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:29:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:29:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:29:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:29:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:29:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:29:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:29:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:29:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:29:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:29:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:29:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:29:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:29:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:29:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:29:11,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:29:11,164 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:29:11,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:11 BoogieIcfgContainer [2020-09-24 22:29:11,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:29:11,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:29:11,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:29:11,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:29:11,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:29:08" (1/3) ... [2020-09-24 22:29:11,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d2f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:11, skipping insertion in model container [2020-09-24 22:29:11,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:09" (2/3) ... [2020-09-24 22:29:11,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d2f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:11, skipping insertion in model container [2020-09-24 22:29:11,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:11" (3/3) ... [2020-09-24 22:29:11,182 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-09-24 22:29:11,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:29:11,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:29:11,232 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:29:11,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:29:11,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:29:11,269 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:29:11,270 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:29:11,270 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:29:11,270 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:29:11,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:29:11,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:29:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-24 22:29:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:29:11,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:11,323 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] [2020-09-24 22:29:11,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:11,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:11,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1309084967, now seen corresponding path program 1 times [2020-09-24 22:29:11,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:11,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146825541] [2020-09-24 22:29:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:11,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:29:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-24 22:29:16,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:29:17,278 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:17,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:17,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 22:29:17,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:17,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:17,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:17,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:17,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:17,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:17,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:17,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:17,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:17,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:17,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:29:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:17,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:17,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:17,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:17,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:17,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:17,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:17,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146825541] [2020-09-24 22:29:17,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:17,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:29:17,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852750709] [2020-09-24 22:29:17,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:29:17,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:17,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:29:17,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:17,661 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 3 states. [2020-09-24 22:29:18,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:18,990 INFO L93 Difference]: Finished difference Result 450 states and 535 transitions. [2020-09-24 22:29:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:29:18,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:29:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:19,024 INFO L225 Difference]: With dead ends: 450 [2020-09-24 22:29:19,024 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 22:29:19,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 22:29:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242. [2020-09-24 22:29:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-24 22:29:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-09-24 22:29:19,209 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 153 [2020-09-24 22:29:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:19,212 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-09-24 22:29:19,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:29:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-09-24 22:29:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:29:19,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:19,223 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] [2020-09-24 22:29:19,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:29:19,224 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:19,225 INFO L82 PathProgramCache]: Analyzing trace with hash -2119975589, now seen corresponding path program 1 times [2020-09-24 22:29:19,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:19,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359777847] [2020-09-24 22:29:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:19,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:29:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 22:29:24,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:29:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,602 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:24,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:24,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 22:29:24,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:24,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:29:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:24,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:24,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:29:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:24,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:24,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359777847] [2020-09-24 22:29:24,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:24,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:24,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778428303] [2020-09-24 22:29:24,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:24,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:24,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:24,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:24,887 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 4 states. [2020-09-24 22:29:25,499 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:26,396 INFO L93 Difference]: Finished difference Result 363 states and 406 transitions. [2020-09-24 22:29:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:26,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:26,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:26,401 INFO L225 Difference]: With dead ends: 363 [2020-09-24 22:29:26,401 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 22:29:26,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:26,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 22:29:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 232. [2020-09-24 22:29:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-24 22:29:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-09-24 22:29:26,476 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 154 [2020-09-24 22:29:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:26,476 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-09-24 22:29:26,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-09-24 22:29:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:29:26,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:26,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:26,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:26,479 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:26,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1523352058, now seen corresponding path program 1 times [2020-09-24 22:29:26,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:26,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85338675] [2020-09-24 22:29:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:29:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2756 [2020-09-24 22:29:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:29:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,571 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:29,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 22:29:29,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:29,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:29,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:29,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:29,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:29:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:29:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:29,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:29,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:29:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:29,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:29,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:29,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:29:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:29,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:29,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:29,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:29,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:29,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:29,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85338675] [2020-09-24 22:29:29,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:29,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:29:29,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557247276] [2020-09-24 22:29:29,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:29:29,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:29,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:29:29,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:29,787 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 5 states. [2020-09-24 22:29:30,318 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:31,209 INFO L93 Difference]: Finished difference Result 409 states and 468 transitions. [2020-09-24 22:29:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:29:31,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:29:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:31,213 INFO L225 Difference]: With dead ends: 409 [2020-09-24 22:29:31,213 INFO L226 Difference]: Without dead ends: 287 [2020-09-24 22:29:31,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:29:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-24 22:29:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 232. [2020-09-24 22:29:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-24 22:29:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 247 transitions. [2020-09-24 22:29:31,256 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 247 transitions. Word has length 167 [2020-09-24 22:29:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:31,257 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 247 transitions. [2020-09-24 22:29:31,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:29:31,257 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 247 transitions. [2020-09-24 22:29:31,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 22:29:31,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:31,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:31,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:31,260 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash -927264169, now seen corresponding path program 1 times [2020-09-24 22:29:31,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:31,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760566436] [2020-09-24 22:29:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:32,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 22:29:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:29:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 22:29:36,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:29:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 22:29:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 22:29:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:36,780 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:36,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:29:36,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:36,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:36,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:36,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:36,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:29:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:36,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:37,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:37,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:29:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:37,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 22:29:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:37,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:37,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:37,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:37,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:37,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:37,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 22:29:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:37,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:37,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:37,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:37,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:37,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:37,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:29:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:37,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:37,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:37,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:37,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:29:37,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:37,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760566436] [2020-09-24 22:29:37,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:37,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:29:37,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575500256] [2020-09-24 22:29:37,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:29:37,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:37,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:29:37,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:29:37,150 INFO L87 Difference]: Start difference. First operand 232 states and 247 transitions. Second operand 10 states. [2020-09-24 22:29:38,303 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:39,651 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:29:40,027 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:29:40,416 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 22:29:40,772 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 22:29:41,138 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 22:29:41,771 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:42,092 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:42,436 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:29:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:43,206 INFO L93 Difference]: Finished difference Result 587 states and 709 transitions. [2020-09-24 22:29:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 22:29:43,207 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-24 22:29:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:43,210 INFO L225 Difference]: With dead ends: 587 [2020-09-24 22:29:43,210 INFO L226 Difference]: Without dead ends: 270 [2020-09-24 22:29:43,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:29:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-24 22:29:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 222. [2020-09-24 22:29:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-24 22:29:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 232 transitions. [2020-09-24 22:29:43,239 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 232 transitions. Word has length 175 [2020-09-24 22:29:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:43,240 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 232 transitions. [2020-09-24 22:29:43,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:29:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 232 transitions. [2020-09-24 22:29:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 22:29:43,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:43,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:43,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:43,243 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:43,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:43,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1752390286, now seen corresponding path program 1 times [2020-09-24 22:29:43,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:43,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493244300] [2020-09-24 22:29:43,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:43,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:43,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:45,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 22:29:48,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:29:48,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 22:29:48,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:29:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 22:29:48,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:29:48,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,605 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:48,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:48,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 22:29:48,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:48,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:48,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:48,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:48,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:48,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:48,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:48,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:48,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:48,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:48,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:48,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:48,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 22:29:49,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:49,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 22:29:49,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:29:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:29:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:29:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:29:49,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 22:29:49,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:29:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:49,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:49,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:29:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:29:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:29:49,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:29:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:49,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:29:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:49,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 22:29:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 22:29:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:29:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:49,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 22:29:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:49,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:49,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:49,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:49,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:49,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:49,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:49,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493244300] [2020-09-24 22:29:49,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:49,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:29:49,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095305233] [2020-09-24 22:29:49,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:29:49,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:49,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:29:49,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:29:49,431 INFO L87 Difference]: Start difference. First operand 222 states and 232 transitions. Second operand 11 states. [2020-09-24 22:29:50,596 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:50,900 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:29:51,216 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:51,537 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:29:51,833 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:52,556 INFO L93 Difference]: Finished difference Result 390 states and 434 transitions. [2020-09-24 22:29:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:29:52,557 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 22:29:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:52,559 INFO L225 Difference]: With dead ends: 390 [2020-09-24 22:29:52,559 INFO L226 Difference]: Without dead ends: 278 [2020-09-24 22:29:52,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:29:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-24 22:29:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 228. [2020-09-24 22:29:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-24 22:29:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 238 transitions. [2020-09-24 22:29:52,608 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 238 transitions. Word has length 199 [2020-09-24 22:29:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:52,609 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 238 transitions. [2020-09-24 22:29:52,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:29:52,609 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 238 transitions. [2020-09-24 22:29:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 22:29:52,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:52,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:52,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:52,613 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash -135374382, now seen corresponding path program 1 times [2020-09-24 22:29:52,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:52,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923553225] [2020-09-24 22:29:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:52,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:52,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking...