/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:03:26,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:03:26,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:03:26,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:03:26,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:03:26,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:03:26,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:03:26,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:03:26,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:03:26,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:03:26,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:03:26,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:03:26,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:03:26,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:03:26,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:03:26,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:03:26,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:03:26,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:03:26,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:03:26,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:03:26,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:03:26,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:03:26,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:03:26,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:03:26,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:03:26,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:03:26,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:03:26,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:03:26,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:03:26,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:03:26,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:03:26,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:03:26,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:03:26,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:03:26,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:03:26,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:03:26,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:03:26,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:03:26,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:03:26,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:03:26,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:03:26,185 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 13:03:26,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:03:26,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:03:26,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:03:26,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:03:26,218 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:03:26,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:03:26,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:03:26,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:03:26,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:03:26,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:03:26,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:03:26,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:03:26,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:03:26,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:03:26,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:03:26,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:03:26,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:03:26,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:03:26,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:03:26,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:03:26,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:03:26,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:03:26,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:03:26,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:03:26,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:03:26,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:03:26,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:03:26,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:03:26,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:03:26,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:03:27,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:03:27,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:03:27,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:03:27,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:03:27,273 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:03:27,274 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product07.cil.c [2020-09-25 13:03:27,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e48405f3/b5adef67b5884bd3b577a468511540bc/FLAG7ec07527a [2020-09-25 13:03:27,983 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:03:27,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product07.cil.c [2020-09-25 13:03:28,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e48405f3/b5adef67b5884bd3b577a468511540bc/FLAG7ec07527a [2020-09-25 13:03:28,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e48405f3/b5adef67b5884bd3b577a468511540bc [2020-09-25 13:03:28,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:03:28,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:03:28,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:03:28,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:03:28,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:03:28,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:28,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28, skipping insertion in model container [2020-09-25 13:03:28,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:28,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:03:28,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:03:28,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:03:28,861 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:03:28,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:03:28,995 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:03:28,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28 WrapperNode [2020-09-25 13:03:28,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:03:28,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:03:28,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:03:28,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:03:29,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (1/1) ... [2020-09-25 13:03:29,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:03:29,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:03:29,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:03:29,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:03:29,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (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 13:03:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:03:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:03:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:03:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:03:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:03:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:03:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:03:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:03:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:03:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:03:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:03:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:03:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:03:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:03:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:03:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:03:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:03:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:03:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:03:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:03:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:03:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:03:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:03:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:03:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:03:29,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:03:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:03:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:03:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:03:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:03:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:03:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:03:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:03:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:03:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:03:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:03:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:03:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:03:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:03:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:03:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:03:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:03:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:03:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:03:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:03:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:03:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:03:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:03:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:03:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:03:30,317 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:03:30,318 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:03:30,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:03:30 BoogieIcfgContainer [2020-09-25 13:03:30,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:03:30,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:03:30,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:03:30,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:03:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:03:28" (1/3) ... [2020-09-25 13:03:30,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2869e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:03:30, skipping insertion in model container [2020-09-25 13:03:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:03:28" (2/3) ... [2020-09-25 13:03:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2869e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:03:30, skipping insertion in model container [2020-09-25 13:03:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:03:30" (3/3) ... [2020-09-25 13:03:30,335 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2020-09-25 13:03:30,347 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:03:30,360 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:03:30,380 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:03:30,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:03:30,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:03:30,410 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:03:30,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:03:30,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:03:30,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:03:30,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:03:30,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:03:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states. [2020-09-25 13:03:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:03:30,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:03:30,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:03:30,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:03:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:03:30,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1840105278, now seen corresponding path program 1 times [2020-09-25 13:03:30,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:03:30,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139987049] [2020-09-25 13:03:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:03:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:31,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:32,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:33,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:34,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:35,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:35,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:03:35,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:03:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 13:03:35,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:35,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:03:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:03:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:03:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:03:36,463 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:03:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:03:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:36,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:03:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:36,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-25 13:03:36,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:36,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:36,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:36,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:36,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:03:36,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:36,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:03:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:36,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:36,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:36,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:36,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:03:36,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:36,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:03:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:03:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:37,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:37,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:37,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:03:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:37,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:37,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:03:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:37,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:37,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:37,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:37,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:03:37,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:37,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:37,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:03:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:37,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:37,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:37,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:03:37,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:37,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:37,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:37,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:37,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:03:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:37,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:37,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:37,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:37,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:37,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:03:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:03:37,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:03:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:03:37,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:03:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:37,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:37,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:37,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:37,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:03:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:37,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:03:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:03:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:03:37,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:37,107 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 13:03:37,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139987049] [2020-09-25 13:03:37,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:03:37,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:03:37,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661745299] [2020-09-25 13:03:37,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:03:37,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:03:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:03:37,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:03:37,151 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 4 states. [2020-09-25 13:03:37,832 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:03:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:03:39,649 INFO L93 Difference]: Finished difference Result 544 states and 673 transitions. [2020-09-25 13:03:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:03:39,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:03:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:03:39,674 INFO L225 Difference]: With dead ends: 544 [2020-09-25 13:03:39,675 INFO L226 Difference]: Without dead ends: 385 [2020-09-25 13:03:39,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:03:39,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-25 13:03:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 322. [2020-09-25 13:03:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-09-25 13:03:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 361 transitions. [2020-09-25 13:03:39,879 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 361 transitions. Word has length 142 [2020-09-25 13:03:39,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:03:39,881 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 361 transitions. [2020-09-25 13:03:39,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:03:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 361 transitions. [2020-09-25 13:03:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:03:39,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:03:39,896 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] [2020-09-25 13:03:39,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:03:39,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:03:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:03:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash -781267192, now seen corresponding path program 1 times [2020-09-25 13:03:39,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:03:39,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745848844] [2020-09-25 13:03:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:03:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:41,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:44,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:44,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:03:44,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:03:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 13:03:44,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:44,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:03:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:03:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 13:03:44,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,337 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:03:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:03:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:03:45,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 13:03:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:03:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:03:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:45,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:45,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:03:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:45,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:03:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:45,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:03:45,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:03:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:45,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:45,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:45,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:03:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:03:45,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:45,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:03:45,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:03:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:45,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:03:45,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:03:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:03:45,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:03:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:45,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:03:45,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:03:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:45,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:03:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:45,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:45,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:45,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:45,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:03:45,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:45,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:45,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:03:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:03:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:03:45,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:45,893 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 13:03:45,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745848844] [2020-09-25 13:03:45,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:03:45,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:03:45,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32312105] [2020-09-25 13:03:45,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:03:45,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:03:45,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:03:45,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:03:45,898 INFO L87 Difference]: Start difference. First operand 322 states and 361 transitions. Second operand 9 states. [2020-09-25 13:03:46,384 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:03:47,332 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:03:47,649 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:03:48,458 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:03:48,807 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:03:49,171 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:03:49,531 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:03:49,849 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:03:50,286 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:03:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:03:51,475 INFO L93 Difference]: Finished difference Result 948 states and 1221 transitions. [2020-09-25 13:03:51,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:03:51,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:03:51,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:03:51,485 INFO L225 Difference]: With dead ends: 948 [2020-09-25 13:03:51,486 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 13:03:51,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:03:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 13:03:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 487. [2020-09-25 13:03:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-25 13:03:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 556 transitions. [2020-09-25 13:03:51,585 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 556 transitions. Word has length 151 [2020-09-25 13:03:51,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:03:51,586 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 556 transitions. [2020-09-25 13:03:51,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:03:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 556 transitions. [2020-09-25 13:03:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:03:51,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:03:51,590 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] [2020-09-25 13:03:51,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:03:51,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:03:51,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:03:51,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1518331328, now seen corresponding path program 1 times [2020-09-25 13:03:51,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:03:51,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26356429] [2020-09-25 13:03:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:03:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:51,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:52,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:54,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:54,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:03:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:03:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3047 [2020-09-25 13:03:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:54,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:03:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:03:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 13:03:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:55,010 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:03:55,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:03:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:03:55,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 13:03:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:03:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:55,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:03:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:55,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:03:55,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:03:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:55,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:55,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:03:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:55,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:03:55,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:55,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:03:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:55,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:03:55,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:03:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:03:55,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:03:55,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:03:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:03:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:03:55,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:03:55,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:03:55,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:03:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:03:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:03:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:03:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:03:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:03:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:03:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:03:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:03:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:03:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:03:55,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:03:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:03:55,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:03:55,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:03:55,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:03:55,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:03:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:03:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:03:55,566 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 13:03:55,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26356429] [2020-09-25 13:03:55,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:03:55,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:03:55,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605864653] [2020-09-25 13:03:55,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:03:55,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:03:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:03:55,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:03:55,570 INFO L87 Difference]: Start difference. First operand 487 states and 556 transitions. Second operand 10 states. [2020-09-25 13:03:56,275 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:03:57,662 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:03:57,908 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:03:58,216 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:03:58,566 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:03:58,830 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:03:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:03:59,053 INFO L93 Difference]: Finished difference Result 843 states and 1011 transitions. [2020-09-25 13:03:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:03:59,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 13:03:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:03:59,057 INFO L225 Difference]: With dead ends: 843 [2020-09-25 13:03:59,057 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:03:59,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:03:59,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:03:59,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:03:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:03:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:03:59,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 13:03:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:03:59,062 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:03:59,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:03:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:03:59,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:03:59,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:03:59,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:03:59,278 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:03:59,460 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:03:59,632 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:03:59,796 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:03:59,966 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:00,153 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:00,310 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:00,471 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:00,635 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:00,792 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:00,955 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:01,109 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:01,260 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:01,403 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:01,550 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:01,698 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:01,856 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:02,003 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:02,158 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:02,310 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:02,467 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:02,624 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:02,785 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:02,933 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:03,090 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:03,249 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:03,403 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:03,807 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:04,052 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:04,262 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:04:04,415 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:04,559 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:04,704 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:04,852 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:05,002 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:05,150 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:05,305 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:05,449 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:05,606 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:05,868 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:04:06,273 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:04:06,514 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:04:06,750 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:04:07,010 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:04:07,447 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:04:07,774 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 13:04:08,128 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:04:08,470 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:04:08,782 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:04:09,131 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:04:09,271 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:09,423 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:09,571 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:09,723 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:09,866 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:10,013 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:10,162 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:10,315 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:10,458 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:10,606 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:10,764 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:10,916 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:11,064 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:11,212 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:11,368 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:11,527 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:11,679 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:11,822 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:11,965 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:12,122 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:12,279 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:12,449 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:12,596 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:12,754 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:12,909 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:13,065 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:13,223 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:13,375 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:13,530 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:13,677 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:13,835 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:13,994 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:14,152 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:14,304 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:14,456 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:14,606 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:14,764 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:14,916 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:15,159 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:04:15,323 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:15,565 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:04:15,722 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:15,965 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:04:16,129 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:16,363 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 10 [2020-09-25 13:04:16,526 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:16,703 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:16,856 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:17,008 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:17,166 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:17,415 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:04:17,802 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:18,041 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:18,612 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:19,017 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:04:19,172 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:19,319 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:19,706 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:20,054 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:04:20,296 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:20,777 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:21,032 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:04:21,353 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:04:21,614 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:04:21,858 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 13:04:22,014 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:22,172 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:22,320 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188