/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=DEEPEST --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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:41:10,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:41:10,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:41:10,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:41:10,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:41:10,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:41:10,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:41:10,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:41:10,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:41:10,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:41:10,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:41:10,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:41:10,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:41:10,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:41:10,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:41:10,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:41:10,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:41:10,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:41:10,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:41:10,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:41:10,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:41:10,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:41:10,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:41:10,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:41:10,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:41:10,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:41:10,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:41:10,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:41:10,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:41:10,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:41:10,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:41:10,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:41:10,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:41:10,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:41:10,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:41:10,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:41:10,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:41:10,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:41:10,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:41:10,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:41:10,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:41:10,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:41:10,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:41:10,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:41:10,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:41:10,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:41:10,665 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:41:10,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:41:10,666 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:41:10,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:41:10,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:41:10,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:41:10,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:41:10,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:41:10,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:41:10,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:41:10,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:41:10,669 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:41:10,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:41:10,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:41:10,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:41:10,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:41:10,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:41:10,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:41:10,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:41:10,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:41:10,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:41:10,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:41:10,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:41:10,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:41:10,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:41:10,672 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:41:11,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:41:11,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:41:11,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:41:11,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:41:11,133 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:41:11,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 00:41:11,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a1a16f9/ac4029f058be4d40bc154d9f6b309cf7/FLAG24fe8ceb3 [2020-09-25 00:41:11,857 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:41:11,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 00:41:11,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a1a16f9/ac4029f058be4d40bc154d9f6b309cf7/FLAG24fe8ceb3 [2020-09-25 00:41:12,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a1a16f9/ac4029f058be4d40bc154d9f6b309cf7 [2020-09-25 00:41:12,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:41:12,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:41:12,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:41:12,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:41:12,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:41:12,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ab8c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12, skipping insertion in model container [2020-09-25 00:41:12,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:41:12,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:41:12,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:41:12,750 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:41:12,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:41:12,889 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:41:12,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12 WrapperNode [2020-09-25 00:41:12,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:41:12,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:41:12,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:41:12,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:41:12,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:12,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... [2020-09-25 00:41:13,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:41:13,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:41:13,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:41:13,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:41:13,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:41:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:41:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:41:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:41:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:41:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:41:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:41:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:41:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:41:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:41:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:41:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:41:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:41:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:41:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:41:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:41:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:41:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:41:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:41:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:41:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:41:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:41:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:41:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:41:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:41:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:41:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:41:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:41:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:41:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:41:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:41:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:41:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:41:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:41:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:41:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:41:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:41:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:41:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:41:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:41:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:41:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:41:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:41:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:41:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:41:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:41:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:41:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:41:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:41:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:41:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:41:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:41:13,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:41:13,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:41:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:41:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:41:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:41:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:41:13,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:41:14,512 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:41:14,512 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:41:14,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:41:14 BoogieIcfgContainer [2020-09-25 00:41:14,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:41:14,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:41:14,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:41:14,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:41:14,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:41:12" (1/3) ... [2020-09-25 00:41:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dd2df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:41:14, skipping insertion in model container [2020-09-25 00:41:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:12" (2/3) ... [2020-09-25 00:41:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dd2df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:41:14, skipping insertion in model container [2020-09-25 00:41:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:41:14" (3/3) ... [2020-09-25 00:41:14,531 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-09-25 00:41:14,543 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:41:14,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:41:14,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:41:14,619 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:41:14,620 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:41:14,620 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:41:14,620 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:41:14,620 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:41:14,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:41:14,621 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:41:14,621 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:41:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 00:41:14,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:41:14,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:14,675 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] [2020-09-25 00:41:14,676 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:14,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:14,685 INFO L82 PathProgramCache]: Analyzing trace with hash -415680263, now seen corresponding path program 1 times [2020-09-25 00:41:14,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:14,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511453561] [2020-09-25 00:41:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:15,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:17,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:41:20,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:41:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 00:41:20,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:41:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:41:20,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:41:20,677 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:20,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:20,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 00:41:20,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:20,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:20,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:20,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:20,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:20,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:20,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:20,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:20,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:20,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:41:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:20,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:20,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:20,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:41:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:20,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:20,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:20,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:20,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:20,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:41:20,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:20,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:20,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:20,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:20,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:21,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511453561] [2020-09-25 00:41:21,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:21,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:41:21,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117696912] [2020-09-25 00:41:21,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:41:21,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:21,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:41:21,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:41:21,073 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 9 states. [2020-09-25 00:41:21,783 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:23,106 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:23,388 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:23,701 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:24,079 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:24,387 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:25,279 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:25,553 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:25,896 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:27,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:27,293 INFO L93 Difference]: Finished difference Result 670 states and 830 transitions. [2020-09-25 00:41:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:41:27,296 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:41:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:27,320 INFO L225 Difference]: With dead ends: 670 [2020-09-25 00:41:27,320 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 00:41:27,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:41:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 00:41:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 394. [2020-09-25 00:41:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 00:41:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 445 transitions. [2020-09-25 00:41:27,519 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 445 transitions. Word has length 148 [2020-09-25 00:41:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:27,523 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 445 transitions. [2020-09-25 00:41:27,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:41:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 445 transitions. [2020-09-25 00:41:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 00:41:27,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:27,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:27,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:41:27,543 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:27,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:27,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1177280016, now seen corresponding path program 1 times [2020-09-25 00:41:27,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:27,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275418897] [2020-09-25 00:41:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:27,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:32,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:32,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 00:41:32,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:41:32,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 00:41:32,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:32,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:32,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 00:41:32,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:32,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:32,929 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:32,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:33,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 00:41:33,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:33,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:33,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:33,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:33,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:33,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:33,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:33,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:41:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:41:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 00:41:33,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:41:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:33,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:33,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 00:41:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:41:33,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:33,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:33,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 00:41:33,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:41:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:33,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:33,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:33,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 00:41:33,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:41:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:33,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:33,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:33,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:41:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:41:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 00:41:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:33,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:33,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:33,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275418897] [2020-09-25 00:41:33,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:33,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:41:33,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518931383] [2020-09-25 00:41:33,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:41:33,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:33,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:41:33,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:41:33,697 INFO L87 Difference]: Start difference. First operand 394 states and 445 transitions. Second operand 10 states. [2020-09-25 00:41:35,218 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:35,537 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:35,841 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:36,156 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:36,485 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:41:36,766 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:38,068 INFO L93 Difference]: Finished difference Result 773 states and 942 transitions. [2020-09-25 00:41:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:41:38,069 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-09-25 00:41:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:38,075 INFO L225 Difference]: With dead ends: 773 [2020-09-25 00:41:38,076 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 00:41:38,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:41:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 00:41:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 411. [2020-09-25 00:41:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-25 00:41:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 468 transitions. [2020-09-25 00:41:38,149 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 468 transitions. Word has length 201 [2020-09-25 00:41:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:38,150 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 468 transitions. [2020-09-25 00:41:38,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:41:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 468 transitions. [2020-09-25 00:41:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 00:41:38,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:38,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:38,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:41:38,154 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:38,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1239608752, now seen corresponding path program 1 times [2020-09-25 00:41:38,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:38,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024597039] [2020-09-25 00:41:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 00:41:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:43,606 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:43,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:43,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 00:41:43,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:43,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:43,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:43,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:43,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:43,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:43,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:43,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:43,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:43,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:43,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:43,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:43,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:43,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:43,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:43,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:43,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:41:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:43,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:41:44,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 00:41:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:41:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:44,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:44,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:41:44,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:41:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:44,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:44,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:41:44,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:41:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:44,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:44,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:41:44,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:41:44,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:41:44,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:44,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:41:44,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:41:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:44,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:44,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:44,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:41:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:44,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:41:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:44,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:44,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:44,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:44,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 00:41:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:44,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:44,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024597039] [2020-09-25 00:41:44,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:44,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:41:44,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184850167] [2020-09-25 00:41:44,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:41:44,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:44,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:41:44,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:41:44,299 INFO L87 Difference]: Start difference. First operand 411 states and 468 transitions. Second operand 9 states. [2020-09-25 00:41:45,702 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:46,020 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:46,387 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:46,749 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:47,046 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:48,371 INFO L93 Difference]: Finished difference Result 801 states and 995 transitions. [2020-09-25 00:41:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:41:48,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2020-09-25 00:41:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:48,377 INFO L225 Difference]: With dead ends: 801 [2020-09-25 00:41:48,377 INFO L226 Difference]: Without dead ends: 505 [2020-09-25 00:41:48,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:41:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-25 00:41:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 417. [2020-09-25 00:41:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-25 00:41:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 474 transitions. [2020-09-25 00:41:48,448 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 474 transitions. Word has length 201 [2020-09-25 00:41:48,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:48,449 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 474 transitions. [2020-09-25 00:41:48,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:41:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 474 transitions. [2020-09-25 00:41:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 00:41:48,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:48,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:48,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:41:48,453 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:48,454 INFO L82 PathProgramCache]: Analyzing trace with hash 900297165, now seen corresponding path program 1 times [2020-09-25 00:41:48,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:48,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907555740] [2020-09-25 00:41:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:48,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:52,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:53,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:53,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 00:41:53,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 00:41:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:53,855 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:53,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:53,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:53,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 00:41:53,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:53,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:53,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:53,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:53,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:53,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:53,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:53,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:53,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:53,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:53,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:53,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:53,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:53,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:53,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:53,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:53,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:53,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:54,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:54,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:41:54,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:41:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 00:41:54,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:41:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:41:54,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:41:54,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:41:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:54,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:41:54,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:54,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:41:54,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:54,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:41:54,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:54,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:54,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:54,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:54,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:54,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:41:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:54,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:54,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 00:41:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:54,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:54,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:54,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:54,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:41:54,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907555740] [2020-09-25 00:41:54,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:54,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:41:54,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823857118] [2020-09-25 00:41:54,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:41:54,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:54,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:41:54,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:41:54,318 INFO L87 Difference]: Start difference. First operand 417 states and 474 transitions. Second operand 6 states. [2020-09-25 00:41:54,856 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:58,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:58,033 INFO L93 Difference]: Finished difference Result 851 states and 1094 transitions. [2020-09-25 00:41:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:41:58,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 201 [2020-09-25 00:41:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:58,052 INFO L225 Difference]: With dead ends: 851 [2020-09-25 00:41:58,052 INFO L226 Difference]: Without dead ends: 848 [2020-09-25 00:41:58,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:41:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-25 00:41:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 681. [2020-09-25 00:41:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-09-25 00:41:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 805 transitions. [2020-09-25 00:41:58,182 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 805 transitions. Word has length 201 [2020-09-25 00:41:58,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:58,183 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 805 transitions. [2020-09-25 00:41:58,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:41:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 805 transitions. [2020-09-25 00:41:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 00:41:58,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:58,194 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:58,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:41:58,195 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:58,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1449045823, now seen corresponding path program 1 times [2020-09-25 00:41:58,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:58,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819685366] [2020-09-25 00:41:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:58,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:58,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:59,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:00,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...