/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:30:50,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:30:50,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:30:50,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:30:50,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:30:50,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:30:50,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:30:50,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:30:50,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:30:50,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:30:50,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:30:50,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:30:50,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:30:50,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:30:50,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:30:50,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:30:50,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:30:50,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:30:50,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:30:50,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:30:50,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:30:50,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:30:50,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:30:50,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:30:50,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:30:50,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:30:50,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:30:50,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:30:50,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:30:50,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:30:51,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:30:51,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:30:51,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:30:51,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:30:51,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:30:51,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:30:51,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:30:51,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:30:51,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:30:51,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:30:51,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:30:51,010 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 23:30:51,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:30:51,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:30:51,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:30:51,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:30:51,070 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:30:51,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:30:51,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:30:51,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:30:51,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:30:51,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:30:51,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:30:51,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:30:51,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:30:51,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:30:51,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:30:51,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:30:51,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:30:51,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:30:51,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:30:51,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:30:51,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:30:51,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:30:51,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:30:51,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:30:51,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:30:51,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:30:51,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:30:51,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:30:51,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:30:51,080 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:30:51,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:30:51,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:30:51,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:30:51,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:30:51,581 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:30:51,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 23:30:51,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/967804b6d/815c83311ab5467d98facd968c32bda3/FLAGe3dc936dd [2020-09-24 23:30:52,272 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:30:52,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 23:30:52,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/967804b6d/815c83311ab5467d98facd968c32bda3/FLAGe3dc936dd [2020-09-24 23:30:52,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/967804b6d/815c83311ab5467d98facd968c32bda3 [2020-09-24 23:30:52,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:30:52,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:30:52,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:52,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:30:52,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:30:52,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52, skipping insertion in model container [2020-09-24 23:30:52,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:30:52,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:30:53,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:53,056 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:30:53,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:53,293 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:30:53,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53 WrapperNode [2020-09-24 23:30:53,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:53,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:30:53,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:30:53,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:30:53,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:30:53,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:30:53,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:30:53,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:30:53,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (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 23:30:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:30:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:30:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:30:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:30:53,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:30:53,481 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:30:53,481 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:30:53,481 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:30:53,482 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:30:53,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:30:53,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:30:53,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:30:53,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:30:53,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:30:53,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:30:53,484 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:30:53,484 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:30:53,484 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:30:53,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:30:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:30:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:30:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:30:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:30:53,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:30:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:30:53,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:30:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:30:53,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:30:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:30:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:30:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:30:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:30:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:30:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:30:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:30:54,741 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:30:54,741 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:30:54,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:54 BoogieIcfgContainer [2020-09-24 23:30:54,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:30:54,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:30:54,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:30:54,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:30:54,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:30:52" (1/3) ... [2020-09-24 23:30:54,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31166bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:54, skipping insertion in model container [2020-09-24 23:30:54,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (2/3) ... [2020-09-24 23:30:54,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31166bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:54, skipping insertion in model container [2020-09-24 23:30:54,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:54" (3/3) ... [2020-09-24 23:30:54,761 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-24 23:30:54,775 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:30:54,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:30:54,812 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:30:54,844 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:30:54,844 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:30:54,844 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:30:54,845 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:30:54,845 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:30:54,845 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:30:54,845 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:30:54,845 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:30:54,876 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 23:30:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:30:54,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:54,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:54,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:54,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:54,906 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-24 23:30:54,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:54,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203877709] [2020-09-24 23:30:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:57,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:31:00,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:31:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-09-24 23:31:00,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:31:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:31:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 23:31:00,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 23:31:01,059 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:01,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:01,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 23:31:01,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:31:01,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:31:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:01,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:01,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:01,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:31:01,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:01,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:01,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:01,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:01,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:01,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:01,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:31:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:01,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:31:01,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:01,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,798 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 23:31:01,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203877709] [2020-09-24 23:31:01,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:01,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:31:01,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84731194] [2020-09-24 23:31:01,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:31:01,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:01,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:31:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:31:01,847 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-24 23:31:02,563 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:03,774 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:04,078 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:04,438 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:04,740 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:05,031 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:05,882 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:06,179 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:06,543 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:08,072 INFO L93 Difference]: Finished difference Result 664 states and 833 transitions. [2020-09-24 23:31:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:31:08,075 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:31:08,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:08,123 INFO L225 Difference]: With dead ends: 664 [2020-09-24 23:31:08,123 INFO L226 Difference]: Without dead ends: 437 [2020-09-24 23:31:08,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:31:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-24 23:31:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2020-09-24 23:31:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-24 23:31:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 454 transitions. [2020-09-24 23:31:08,323 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 454 transitions. Word has length 142 [2020-09-24 23:31:08,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:08,324 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 454 transitions. [2020-09-24 23:31:08,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:31:08,325 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 454 transitions. [2020-09-24 23:31:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 23:31:08,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:08,341 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] [2020-09-24 23:31:08,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:31:08,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:08,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:08,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-24 23:31:08,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:08,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303439103] [2020-09-24 23:31:08,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:08,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:08,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 23:31:13,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:13,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:31:13,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:31:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:31:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 23:31:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:13,753 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:14,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-24 23:31:14,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:31:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:31:14,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:14,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 23:31:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:14,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 23:31:14,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 23:31:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:14,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 23:31:14,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:14,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:31:14,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:14,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:31:14,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:14,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:14,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 23:31:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 23:31:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,800 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 23:31:14,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303439103] [2020-09-24 23:31:14,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:14,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:31:14,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600898375] [2020-09-24 23:31:14,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:31:14,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:14,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:31:14,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:31:14,804 INFO L87 Difference]: Start difference. First operand 393 states and 454 transitions. Second operand 9 states. [2020-09-24 23:31:15,267 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:16,399 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 23:31:17,024 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 23:31:17,371 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:17,716 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:18,023 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:18,552 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:18,940 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:31:19,334 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:22,118 INFO L93 Difference]: Finished difference Result 1079 states and 1390 transitions. [2020-09-24 23:31:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:31:22,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-09-24 23:31:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:22,126 INFO L225 Difference]: With dead ends: 1079 [2020-09-24 23:31:22,126 INFO L226 Difference]: Without dead ends: 750 [2020-09-24 23:31:22,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:31:22,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-09-24 23:31:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 635. [2020-09-24 23:31:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-24 23:31:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 741 transitions. [2020-09-24 23:31:22,252 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 741 transitions. Word has length 195 [2020-09-24 23:31:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:22,253 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 741 transitions. [2020-09-24 23:31:22,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:31:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 741 transitions. [2020-09-24 23:31:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 23:31:22,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:22,259 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:22,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:31:22,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2099910878, now seen corresponding path program 1 times [2020-09-24 23:31:22,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:22,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845413051] [2020-09-24 23:31:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:22,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:22,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:27,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:27,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-24 23:31:27,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:31:27,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 23:31:27,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:27,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:31:27,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:31:27,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:31:27,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:27,670 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:27,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:27,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:27,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:27,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:27,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:27,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-24 23:31:27,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:31:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:28,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:31:28,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:28,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:28,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:28,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:28,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:31:28,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:28,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:28,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:28,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:28,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:28,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:28,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:31:28,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:31:28,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:28,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:31:28,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:31:28,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:31:28,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:28,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:31:28,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 23:31:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:31:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 23:31:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:31:28,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:28,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:28,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:31:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:28,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 23:31:28,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 23:31:28,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:28,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:28,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:31:28,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:31:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 23:31:28,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:31:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:28,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:31:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:31:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:31:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:28,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:28,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 23:31:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:28,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:28,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-09-24 23:31:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:28,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:28,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:28,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:28,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:28,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 23:31:28,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845413051] [2020-09-24 23:31:28,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:31:28,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 23:31:28,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750281487] [2020-09-24 23:31:28,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:31:28,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:28,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:31:28,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:31:28,778 INFO L87 Difference]: Start difference. First operand 635 states and 741 transitions. Second operand 12 states. [2020-09-24 23:31:29,388 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:30,338 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:30,888 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:31,213 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:31,559 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:31,867 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:32,193 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:32,606 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:32,967 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:33,358 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:33,754 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:34,070 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:38,470 INFO L93 Difference]: Finished difference Result 2165 states and 2878 transitions. [2020-09-24 23:31:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 23:31:38,471 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 249 [2020-09-24 23:31:38,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:38,483 INFO L225 Difference]: With dead ends: 2165 [2020-09-24 23:31:38,484 INFO L226 Difference]: Without dead ends: 1640 [2020-09-24 23:31:38,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 23:31:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2020-09-24 23:31:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1165. [2020-09-24 23:31:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2020-09-24 23:31:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1374 transitions. [2020-09-24 23:31:38,657 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1374 transitions. Word has length 249 [2020-09-24 23:31:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:38,658 INFO L479 AbstractCegarLoop]: Abstraction has 1165 states and 1374 transitions. [2020-09-24 23:31:38,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:31:38,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1374 transitions. [2020-09-24 23:31:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 23:31:38,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:38,663 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, 1] [2020-09-24 23:31:38,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:31:38,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:38,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash -956768190, now seen corresponding path program 1 times [2020-09-24 23:31:38,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:38,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925988253] [2020-09-24 23:31:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:38,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 23:31:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-09-24 23:31:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-24 23:31:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:39,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:39,782 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:39,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 23:31:39,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:39,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:39,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:39,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:31:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:40,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 23:31:40,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:40,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 23:31:40,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:40,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:40,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:40,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 23:31:40,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:31:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:40,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:31:40,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:31:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:40,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 23:31:40,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:31:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:31:40,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:40,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:40,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:40,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:40,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:40,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:40,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 23:31:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:40,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 23:31:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:40,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:40,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:40,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:40,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:40,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:40,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:40,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:40,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:40,592 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 23:31:40,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925988253] [2020-09-24 23:31:40,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:40,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:31:40,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743257451] [2020-09-24 23:31:40,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:31:40,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:40,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:31:40,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:31:40,596 INFO L87 Difference]: Start difference. First operand 1165 states and 1374 transitions. Second operand 10 states. [2020-09-24 23:31:41,950 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187