/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:57:21,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:57:21,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:57:21,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:57:21,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:57:21,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:57:21,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:57:21,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:57:21,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:57:21,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:57:21,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:57:21,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:57:21,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:57:21,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:57:21,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:57:21,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:57:21,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:57:21,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:57:21,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:57:21,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:57:21,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:57:21,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:57:21,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:57:21,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:57:21,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:57:21,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:57:21,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:57:21,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:57:21,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:57:21,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:57:21,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:57:21,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:57:21,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:57:21,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:57:21,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:57:21,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:57:21,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:57:21,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:57:21,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:57:21,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:57:21,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:57:21,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:57:21,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:57:21,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:57:21,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:57:21,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:57:21,494 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:57:21,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:57:21,495 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:57:21,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:57:21,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:57:21,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:57:21,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:57:21,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:57:21,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:57:21,497 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:57:21,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:57:21,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:57:21,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:57:21,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:57:21,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:57:21,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:57:21,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:57:21,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:57:21,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:57:21,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:57:21,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:57:21,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:57:21,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:57:21,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:57:21,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:57:21,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:57:22,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:57:22,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:57:22,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:57:22,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:57:22,075 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:57:22,076 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2020-09-25 11:57:22,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09de9c59e/1ebfb693a5544c3496ad1de679c9ab9e/FLAGe949e263d [2020-09-25 11:57:22,807 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:57:22,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2020-09-25 11:57:22,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09de9c59e/1ebfb693a5544c3496ad1de679c9ab9e/FLAGe949e263d [2020-09-25 11:57:23,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09de9c59e/1ebfb693a5544c3496ad1de679c9ab9e [2020-09-25 11:57:23,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:57:23,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:57:23,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:57:23,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:57:23,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:57:23,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23, skipping insertion in model container [2020-09-25 11:57:23,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:57:23,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:57:23,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:57:23,649 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:57:23,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:57:23,819 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:57:23,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23 WrapperNode [2020-09-25 11:57:23,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:57:23,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:57:23,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:57:23,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:57:23,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... [2020-09-25 11:57:23,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:57:23,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:57:23,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:57:23,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:57:23,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:57:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:57:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:57:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:57:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:57:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:57:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 11:57:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:57:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:57:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:57:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:57:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:57:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:57:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:57:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:57:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:57:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:57:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:57:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:57:24,007 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:57:24,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:57:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:57:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:57:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:57:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:57:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:57:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:57:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:57:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:57:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:57:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:57:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:57:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:57:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:57:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:57:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:57:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:57:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:57:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:57:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:57:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:57:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:57:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:57:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:57:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:57:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:57:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:57:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:57:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:57:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:57:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:57:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:57:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:57:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:57:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:57:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:57:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:57:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:57:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:57:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:57:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:57:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:57:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:57:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:57:25,218 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:57:25,218 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:57:25,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:57:25 BoogieIcfgContainer [2020-09-25 11:57:25,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:57:25,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:57:25,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:57:25,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:57:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:57:23" (1/3) ... [2020-09-25 11:57:25,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad4e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:57:25, skipping insertion in model container [2020-09-25 11:57:25,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:23" (2/3) ... [2020-09-25 11:57:25,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad4e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:57:25, skipping insertion in model container [2020-09-25 11:57:25,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:57:25" (3/3) ... [2020-09-25 11:57:25,240 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product29.cil.c [2020-09-25 11:57:25,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:57:25,265 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:57:25,290 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:57:25,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:57:25,329 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:57:25,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:57:25,330 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:57:25,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:57:25,330 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:57:25,330 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:57:25,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:57:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-09-25 11:57:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:57:25,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:25,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:57:25,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:25,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:25,396 INFO L82 PathProgramCache]: Analyzing trace with hash -992728366, now seen corresponding path program 1 times [2020-09-25 11:57:25,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:25,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152827515] [2020-09-25 11:57:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:26,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:27,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:30,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:30,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:57:30,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:57:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 11:57:30,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:30,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:57:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:57:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:57:30,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 11:57:31,394 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:31,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 11:57:31,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:31,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:57:31,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:57:31,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:31,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:57:31,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:31,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:57:31,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:31,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:31,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:31,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:31,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:57:31,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:31,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:31,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:57:31,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:57:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:31,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:57:31,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:57:31,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:31,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:31,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:57:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:31,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:31,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:31,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:31,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:31,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:31,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:31,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:57:32,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152827515] [2020-09-25 11:57:32,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:32,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:57:32,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936614403] [2020-09-25 11:57:32,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:57:32,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:32,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:57:32,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:57:32,047 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 8 states. [2020-09-25 11:57:32,763 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:33,958 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:34,304 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:34,588 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:34,936 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:35,270 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:35,825 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:36,111 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:36,659 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:38,096 INFO L93 Difference]: Finished difference Result 609 states and 749 transitions. [2020-09-25 11:57:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 11:57:38,102 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:57:38,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:38,124 INFO L225 Difference]: With dead ends: 609 [2020-09-25 11:57:38,124 INFO L226 Difference]: Without dead ends: 408 [2020-09-25 11:57:38,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:57:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-25 11:57:38,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 353. [2020-09-25 11:57:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 11:57:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 393 transitions. [2020-09-25 11:57:38,264 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 393 transitions. Word has length 142 [2020-09-25 11:57:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:38,265 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 393 transitions. [2020-09-25 11:57:38,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:57:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 393 transitions. [2020-09-25 11:57:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 11:57:38,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:38,272 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] [2020-09-25 11:57:38,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:57:38,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:38,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:38,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1551555864, now seen corresponding path program 1 times [2020-09-25 11:57:38,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:38,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082354204] [2020-09-25 11:57:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:38,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:38,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 11:57:42,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:57:42,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3862 [2020-09-25 11:57:42,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:57:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:57:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,465 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:42,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:42,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 11:57:42,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:57:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:42,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:42,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:42,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:42,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:42,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:57:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:57:42,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:42,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:42,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:57:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:57:42,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:57:42,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:42,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:57:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 11:57:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:42,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:42,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 11:57:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:42,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:42,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:42,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:42,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:42,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:57:42,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:42,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:42,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:57:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:57:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:57:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:57:42,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082354204] [2020-09-25 11:57:42,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:42,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:57:42,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911023213] [2020-09-25 11:57:42,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:57:42,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:42,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:57:42,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:57:42,921 INFO L87 Difference]: Start difference. First operand 353 states and 393 transitions. Second operand 5 states. [2020-09-25 11:57:43,439 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:44,414 INFO L93 Difference]: Finished difference Result 670 states and 789 transitions. [2020-09-25 11:57:44,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:57:44,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-09-25 11:57:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:44,422 INFO L225 Difference]: With dead ends: 670 [2020-09-25 11:57:44,422 INFO L226 Difference]: Without dead ends: 427 [2020-09-25 11:57:44,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:57:44,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-25 11:57:44,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 353. [2020-09-25 11:57:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 11:57:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 391 transitions. [2020-09-25 11:57:44,489 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 391 transitions. Word has length 157 [2020-09-25 11:57:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:44,490 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 391 transitions. [2020-09-25 11:57:44,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:57:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 391 transitions. [2020-09-25 11:57:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 11:57:44,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:57:44,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:57:44,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:57:44,494 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:57:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:57:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1057721220, now seen corresponding path program 1 times [2020-09-25 11:57:44,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:57:44,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975714178] [2020-09-25 11:57:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:57:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:44,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4728 [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:49,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 11:57:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:57:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 11:57:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:57:49,647 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:49,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:57:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:49,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:49,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:57:49,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 11:57:49,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:49,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 11:57:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:49,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:57:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:49,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:49,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:49,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:49,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:57:49,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:57:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:50,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:50,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:57:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:50,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:57:50,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:50,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:57:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:50,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:57:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:57:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:57:50,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:57:50,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:57:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:57:50,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:57:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:57:50,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:57:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:57:50,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:57:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:57:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:57:50,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:57:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:57:50,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:57:50,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:57:50,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:57:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:57:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:57:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:57:50,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:57:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:57:50,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:57:50,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:57:50,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:57:50,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 11:57:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:57:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:57:50,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 11:57:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:57:50,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:57:50,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:57:50,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:57:50,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:57:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:57:50,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:57:50,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:57:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:57:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:57:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:57:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:57:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:57:50,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975714178] [2020-09-25 11:57:50,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:57:50,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:57:50,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826913758] [2020-09-25 11:57:50,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:57:50,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:57:50,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:57:50,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:57:50,398 INFO L87 Difference]: Start difference. First operand 353 states and 391 transitions. Second operand 11 states. [2020-09-25 11:57:51,130 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:52,293 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:52,620 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:52,950 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:53,287 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:57:53,590 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:53,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:53,872 INFO L93 Difference]: Finished difference Result 543 states and 630 transitions. [2020-09-25 11:57:53,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:57:53,872 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-09-25 11:57:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:53,873 INFO L225 Difference]: With dead ends: 543 [2020-09-25 11:57:53,874 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:57:53,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:57:53,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:57:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:57:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:57:53,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:57:53,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 11:57:53,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:53,879 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:57:53,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:57:53,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:57:53,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:57:53,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:57:53,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:57:54,063 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:54,237 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:54,418 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:54,822 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:55,170 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:55,495 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:57:55,827 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:57:56,150 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:57:56,490 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:57:56,646 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:56,803 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:56,952 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:57,105 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:57,263 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:57,418 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:57,557 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:57,705 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:57,862 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:58,017 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:58,165 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:58,311 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:58,459 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:58,609 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:58,753 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:58,905 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:59,058 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:59,207 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:59,358 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:59,512 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:59,665 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:59,820 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:59,974 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,127 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,282 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,442 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,595 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,751 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:00,901 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:01,010 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 11:58:01,161 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:01,310 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:01,457 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:01,793 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:58:02,124 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:58:02,435 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:58:02,753 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:58:03,069 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:58:03,405 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 11:58:03,562 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:03,717 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:03,874 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:04,027 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:04,195 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:04,350 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:04,506 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:04,766 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:04,920 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:05,070 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:05,215 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:05,359 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:05,510 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:05,663 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:05,980 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:58:06,148 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:06,464 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:58:06,625 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:06,771 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:06,914 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:07,065 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:07,217 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:07,469 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:07,637 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:08,112 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 11:58:08,345 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:08,760 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 15 [2020-09-25 11:58:08,971 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 11:58:09,382 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 11:58:09,621 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:09,896 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:10,408 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-09-25 11:58:10,830 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 11:58:11,240 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 12 [2020-09-25 11:58:11,674 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 12 [2020-09-25 11:58:11,926 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:12,362 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 15 [2020-09-25 11:58:12,789 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 11:58:12,993 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 11:58:13,225 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:13,447 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:13,679 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:13,918 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-09-25 11:58:14,521 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20 [2020-09-25 11:58:14,746 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 11:58:14,957 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 15