/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=LOWLEXORDER --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_spec2_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:17:31,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:17:31,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:17:31,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:17:31,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:17:31,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:17:31,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:17:31,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:17:31,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:17:31,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:17:31,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:17:31,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:17:31,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:17:31,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:17:31,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:17:31,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:17:31,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:17:31,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:17:31,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:17:31,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:17:31,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:17:31,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:17:31,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:17:31,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:17:31,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:17:31,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:17:31,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:17:31,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:17:31,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:17:31,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:17:31,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:17:31,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:17:31,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:17:31,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:17:31,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:17:31,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:17:31,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:17:31,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:17:31,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:17:31,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:17:31,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:17:31,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:17:31,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:17:31,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:17:31,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:17:31,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:17:31,906 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:17:31,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:17:31,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:17:31,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:17:31,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:17:31,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:17:31,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:17:31,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:17:31,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:17:31,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:17:31,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:17:31,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:17:31,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:17:31,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:17:31,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:17:31,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:17:31,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:17:31,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:17:31,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:17:31,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:17:31,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:17:31,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:17:31,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:17:31,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:17:31,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:17:31,911 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:17:32,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:17:32,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:17:32,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:17:32,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:17:32,411 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:17:32,412 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-24 21:17:32,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763006ba5/ccc5fa02641f42a9902d2ca7d294c28a/FLAGdddef7a61 [2020-09-24 21:17:33,169 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:17:33,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-24 21:17:33,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763006ba5/ccc5fa02641f42a9902d2ca7d294c28a/FLAGdddef7a61 [2020-09-24 21:17:33,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763006ba5/ccc5fa02641f42a9902d2ca7d294c28a [2020-09-24 21:17:33,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:17:33,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:17:33,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:17:33,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:17:33,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:17:33,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:17:33" (1/1) ... [2020-09-24 21:17:33,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:33, skipping insertion in model container [2020-09-24 21:17:33,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:17:33" (1/1) ... [2020-09-24 21:17:33,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:17:33,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:17:33,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:17:33,952 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:17:34,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:17:34,186 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:17:34,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34 WrapperNode [2020-09-24 21:17:34,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:17:34,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:17:34,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:17:34,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:17:34,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... [2020-09-24 21:17:34,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:17:34,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:17:34,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:17:34,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:17:34,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:17:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:17:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:17:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:17:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:17:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:17:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:17:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:17:34,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:17:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:17:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:17:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:17:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:17:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:17:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:17:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:17:34,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:17:34,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:17:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:17:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:17:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:17:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:17:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:17:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:17:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:17:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:17:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:17:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:17:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:17:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:17:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:17:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:17:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:17:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:17:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:17:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:17:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:17:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:17:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:17:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:17:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:17:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:17:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:17:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:17:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:17:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:17:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:17:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:17:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:17:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:17:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:17:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:17:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:17:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:17:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:17:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:17:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:17:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:17:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:17:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:17:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:17:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:17:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:17:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:17:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:17:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:17:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:17:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:17:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:17:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:17:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:17:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:17:35,507 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:17:35,508 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:17:35,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:17:35 BoogieIcfgContainer [2020-09-24 21:17:35,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:17:35,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:17:35,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:17:35,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:17:35,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:17:33" (1/3) ... [2020-09-24 21:17:35,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33030383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:17:35, skipping insertion in model container [2020-09-24 21:17:35,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:34" (2/3) ... [2020-09-24 21:17:35,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33030383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:17:35, skipping insertion in model container [2020-09-24 21:17:35,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:17:35" (3/3) ... [2020-09-24 21:17:35,533 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2020-09-24 21:17:35,545 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:17:35,562 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:17:35,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:17:35,610 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:17:35,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:17:35,611 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:17:35,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:17:35,611 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:17:35,611 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:17:35,611 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:17:35,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:17:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2020-09-24 21:17:35,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:17:35,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:35,656 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] [2020-09-24 21:17:35,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:35,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:35,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1360572740, now seen corresponding path program 1 times [2020-09-24 21:17:35,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:35,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046799808] [2020-09-24 21:17:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:36,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:38,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:17:41,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:17:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-24 21:17:41,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:17:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 21:17:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 21:17:41,544 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:41,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:17:41,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 21:17:41,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:17:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:41,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:17:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:41,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:41,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:41,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:41,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:17:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:41,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:41,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:41,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:17:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:41,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:41,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:17:41,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:41,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:41,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:17:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:41,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:41,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:41,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:41,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:41,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:17:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:42,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:42,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:42,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:42,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:42,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:42,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:42,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:17:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:42,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:42,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:42,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:42,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:42,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:42,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:17:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:42,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:42,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:17:42,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046799808] [2020-09-24 21:17:42,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:42,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:17:42,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683982874] [2020-09-24 21:17:42,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:17:42,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:42,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:17:42,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:17:42,117 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 5 states. [2020-09-24 21:17:42,759 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:43,606 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-24 21:17:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:17:43,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:17:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:43,629 INFO L225 Difference]: With dead ends: 404 [2020-09-24 21:17:43,630 INFO L226 Difference]: Without dead ends: 267 [2020-09-24 21:17:43,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:17:43,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-24 21:17:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-24 21:17:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-24 21:17:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-24 21:17:43,750 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 148 [2020-09-24 21:17:43,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:43,751 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-24 21:17:43,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:17:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-24 21:17:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:17:43,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:43,757 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] [2020-09-24 21:17:43,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:17:43,758 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash -731898127, now seen corresponding path program 1 times [2020-09-24 21:17:43,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:43,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857090683] [2020-09-24 21:17:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:43,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:44,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:45,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:45,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:48,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:48,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:17:48,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:17:48,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 21:17:48,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:48,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:17:48,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:17:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 21:17:48,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,236 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:17:49,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 21:17:49,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:17:49,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:17:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:49,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:49,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:49,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:17:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:17:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:49,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:49,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:49,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:17:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:49,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:49,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:17:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:49,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:49,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:49,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:17:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:17:49,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:49,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:49,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:17:49,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:49,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:49,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:49,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:49,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:17:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:49,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:17:49,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:49,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:49,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:17:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:17:49,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857090683] [2020-09-24 21:17:49,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:49,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:17:49,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409170762] [2020-09-24 21:17:49,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:17:49,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:49,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:17:49,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:17:49,679 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 10 states. [2020-09-24 21:17:50,200 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:51,192 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:51,534 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:17:52,182 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:52,514 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:53,081 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:53,393 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:17:53,708 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:54,322 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:55,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:55,037 INFO L93 Difference]: Finished difference Result 545 states and 669 transitions. [2020-09-24 21:17:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:17:55,039 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-24 21:17:55,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:55,045 INFO L225 Difference]: With dead ends: 545 [2020-09-24 21:17:55,045 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 21:17:55,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:17:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 21:17:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 301. [2020-09-24 21:17:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 21:17:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-24 21:17:55,128 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 157 [2020-09-24 21:17:55,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:55,128 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-24 21:17:55,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:17:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-24 21:17:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 21:17:55,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:55,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:55,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:17:55,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:55,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1324537707, now seen corresponding path program 1 times [2020-09-24 21:17:55,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:55,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978021206] [2020-09-24 21:17:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:18:00,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:18:00,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 21:18:00,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:18:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:18:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-24 21:18:00,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,536 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:00,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:00,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 21:18:00,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:18:00,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:00,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:00,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:00,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:00,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:00,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:00,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:00,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:18:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:18:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:18:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:18:00,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:18:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:00,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:18:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:18:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:18:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:18:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:00,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:00,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:18:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:00,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:18:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:00,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:00,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:00,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:18:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:18:01,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978021206] [2020-09-24 21:18:01,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:01,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:18:01,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490625407] [2020-09-24 21:18:01,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:18:01,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:01,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:18:01,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:18:01,057 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 11 states. [2020-09-24 21:18:01,633 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:03,090 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:18:03,731 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 21:18:04,105 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:04,443 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:04,748 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:05,062 INFO L93 Difference]: Finished difference Result 507 states and 592 transitions. [2020-09-24 21:18:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:18:05,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-24 21:18:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:05,064 INFO L225 Difference]: With dead ends: 507 [2020-09-24 21:18:05,064 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:18:05,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:18:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:18:05,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:18:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:18:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:18:05,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-24 21:18:05,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:05,069 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:18:05,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:18:05,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:18:05,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:18:05,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:18:05,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:18:05,254 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:05,423 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:05,603 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:05,757 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 9 [2020-09-24 21:18:05,922 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:06,082 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:06,242 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:06,407 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:06,564 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:06,723 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:06,867 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:07,130 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-24 21:18:07,282 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:07,435 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:07,599 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:07,753 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:07,906 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:08,060 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:08,227 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:08,381 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:08,547 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:08,700 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:08,857 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:08,976 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-24 21:18:09,135 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:09,287 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:09,450 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:09,609 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:09,766 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:09,919 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:10,076 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:10,235 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:10,389 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:10,546 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:10,698 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:10,850 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:11,003 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:11,157 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:11,324 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:11,482 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:11,639 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:11,797 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:12,133 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:12,470 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:12,741 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2020-09-24 21:18:13,266 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:13,538 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2020-09-24 21:18:13,902 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2020-09-24 21:18:14,238 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:14,508 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2020-09-24 21:18:14,668 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:14,923 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 13 [2020-09-24 21:18:15,083 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:15,244 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:15,401 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:15,555 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:15,716 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:15,971 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-24 21:18:16,133 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:16,287 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:16,444 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:16,608 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:16,761 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:16,923 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:17,080 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:17,237 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:17,394 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:17,547 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:17,699 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:17,853 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:18,175 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 21:18:18,501 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 21:18:18,848 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:18:19,364 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 21:18:19,716 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:18:19,818 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 14 [2020-09-24 21:18:20,165 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:18:20,488 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 21:18:20,834 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:18:20,994 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:21,149 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:21,599 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 11 [2020-09-24 21:18:21,820 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:22,057 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 21:18:22,307 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 17 [2020-09-24 21:18:22,534 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:22,761 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:23,038 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:23,691 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 23 [2020-09-24 21:18:24,059 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 12 [2020-09-24 21:18:24,458 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 12 [2020-09-24 21:18:25,098 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 23 [2020-09-24 21:18:25,558 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 12 [2020-09-24 21:18:26,026 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 23 [2020-09-24 21:18:26,266 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:26,529 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:26,746 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 15 [2020-09-24 21:18:26,972 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:27,184 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 21:18:27,448 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23 [2020-09-24 21:18:27,673 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 23