/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec4_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:28:30,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:28:30,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:28:30,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:28:30,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:28:30,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:28:30,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:28:30,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:28:30,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:28:30,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:28:30,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:28:30,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:28:30,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:28:30,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:28:30,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:28:30,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:28:30,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:28:30,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:28:30,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:28:30,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:28:30,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:28:30,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:28:30,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:28:30,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:28:30,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:28:30,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:28:30,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:28:30,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:28:30,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:28:30,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:28:30,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:28:30,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:28:30,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:28:30,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:28:30,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:28:30,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:28:30,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:28:30,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:28:30,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:28:30,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:28:30,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:28:30,635 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 06:28:30,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:28:30,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:28:30,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:28:30,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:28:30,687 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:28:30,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:28:30,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:28:30,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:28:30,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:28:30,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:28:30,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:28:30,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:28:30,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:28:30,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:28:30,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:28:30,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:28:30,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:28:30,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:28:30,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:28:30,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:28:30,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:28:30,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:28:30,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:28:30,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:28:30,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:28:30,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:28:30,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:28:30,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:28:30,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:28:30,693 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:28:31,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:28:31,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:28:31,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:28:31,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:28:31,167 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:28:31,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c [2020-09-25 06:28:31,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d7a958c/5737c89500fb418da0d8624a0633fc0e/FLAG43de584c6 [2020-09-25 06:28:31,953 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:28:31,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c [2020-09-25 06:28:31,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d7a958c/5737c89500fb418da0d8624a0633fc0e/FLAG43de584c6 [2020-09-25 06:28:32,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d7a958c/5737c89500fb418da0d8624a0633fc0e [2020-09-25 06:28:32,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:28:32,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:28:32,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:32,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:28:32,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:28:32,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:32,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7405883a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32, skipping insertion in model container [2020-09-25 06:28:32,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:32,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:28:32,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:28:32,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:32,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:28:32,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:32,990 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:28:32,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32 WrapperNode [2020-09-25 06:28:32,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:32,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:28:32,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:28:32,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:28:33,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (1/1) ... [2020-09-25 06:28:33,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:28:33,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:28:33,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:28:33,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:28:33,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (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 06:28:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:28:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:28:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:28:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:28:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:28:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:28:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:28:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:28:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-25 06:28:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-25 06:28:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-25 06:28:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-25 06:28:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-25 06:28:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-25 06:28:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:28:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-25 06:28:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-25 06:28:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:28:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:28:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:28:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:28:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:28:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:28:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:28:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:28:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:28:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:28:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:28:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:28:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:28:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:28:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:28:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:28:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:28:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:28:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:28:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:28:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:28:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:28:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:28:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:28:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:28:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:28:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:28:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:28:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:28:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:28:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:28:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:28:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:28:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:28:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:28:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:28:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:28:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:28:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:28:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:28:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:28:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:28:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:28:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:28:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:28:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:28:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-25 06:28:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:28:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:28:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:28:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:28:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:28:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:28:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:28:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:28:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:28:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:28:34,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:28:34,693 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:28:34,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:34 BoogieIcfgContainer [2020-09-25 06:28:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:28:34,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:28:34,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:28:34,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:28:34,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:28:32" (1/3) ... [2020-09-25 06:28:34,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6ebe48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:34, skipping insertion in model container [2020-09-25 06:28:34,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:32" (2/3) ... [2020-09-25 06:28:34,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6ebe48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:34, skipping insertion in model container [2020-09-25 06:28:34,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:34" (3/3) ... [2020-09-25 06:28:34,713 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2020-09-25 06:28:34,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:28:34,739 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:28:34,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:28:34,800 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:28:34,801 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:28:34,801 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:28:34,801 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:28:34,801 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:28:34,801 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:28:34,802 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:28:34,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:28:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states. [2020-09-25 06:28:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 06:28:34,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:34,860 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:34,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1119932632, now seen corresponding path program 1 times [2020-09-25 06:28:34,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:34,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808305540] [2020-09-25 06:28:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:35,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:38,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:40,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:40,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 06:28:40,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:40,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:28:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:40,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-25 06:28:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:28:40,922 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:28:40,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:41,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 06:28:41,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 06:28:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:41,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:28:41,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 06:28:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:41,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:28:41,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:28:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 06:28:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:28:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:41,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 06:28:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 06:28:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 06:28:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:41,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:28:41,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:28:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:41,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:41,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:28:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:41,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 06:28:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:41,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 06:28:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:41,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:41,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:41,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 06:28:41,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808305540] [2020-09-25 06:28:41,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:41,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:28:41,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555809061] [2020-09-25 06:28:41,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:28:41,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:41,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:28:41,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:28:41,573 INFO L87 Difference]: Start difference. First operand 420 states. Second operand 5 states. [2020-09-25 06:28:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:44,109 INFO L93 Difference]: Finished difference Result 676 states and 815 transitions. [2020-09-25 06:28:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:28:44,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2020-09-25 06:28:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:44,144 INFO L225 Difference]: With dead ends: 676 [2020-09-25 06:28:44,144 INFO L226 Difference]: Without dead ends: 427 [2020-09-25 06:28:44,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:28:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-25 06:28:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 369. [2020-09-25 06:28:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 06:28:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 414 transitions. [2020-09-25 06:28:44,307 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 414 transitions. Word has length 224 [2020-09-25 06:28:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:44,308 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 414 transitions. [2020-09-25 06:28:44,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:28:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 414 transitions. [2020-09-25 06:28:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 06:28:44,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:44,315 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:44,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:28:44,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:44,316 INFO L82 PathProgramCache]: Analyzing trace with hash -259914180, now seen corresponding path program 1 times [2020-09-25 06:28:44,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:44,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721941323] [2020-09-25 06:28:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:44,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:47,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:48,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:49,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:49,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 06:28:49,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:28:49,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:28:49,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:49,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 06:28:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:28:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:49,745 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:28:49,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:49,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:49,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:49,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:49,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 06:28:49,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:49,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:49,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:49,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:49,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:49,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 06:28:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:49,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:49,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:49,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:49,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:49,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:49,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:49,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:49,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 06:28:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:49,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:49,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:49,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:49,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:28:49,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:49,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:28:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:49,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:49,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:49,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:49,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:49,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 06:28:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:50,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:28:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:50,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 06:28:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:50,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 06:28:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:50,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 06:28:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:50,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:28:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:50,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:28:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:50,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:28:50,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 06:28:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:50,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-25 06:28:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:50,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:50,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:50,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:50,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:50,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 06:28:50,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721941323] [2020-09-25 06:28:50,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:50,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:28:50,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057536643] [2020-09-25 06:28:50,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:28:50,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:50,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:28:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:28:50,129 INFO L87 Difference]: Start difference. First operand 369 states and 414 transitions. Second operand 6 states. [2020-09-25 06:28:51,026 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 06:28:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:28:53,276 INFO L93 Difference]: Finished difference Result 585 states and 678 transitions. [2020-09-25 06:28:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:28:53,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2020-09-25 06:28:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:28:53,283 INFO L225 Difference]: With dead ends: 585 [2020-09-25 06:28:53,284 INFO L226 Difference]: Without dead ends: 410 [2020-09-25 06:28:53,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:28:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-25 06:28:53,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 359. [2020-09-25 06:28:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 06:28:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 401 transitions. [2020-09-25 06:28:53,387 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 401 transitions. Word has length 225 [2020-09-25 06:28:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:28:53,389 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 401 transitions. [2020-09-25 06:28:53,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:28:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 401 transitions. [2020-09-25 06:28:53,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 06:28:53,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:53,395 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:53,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:28:53,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:53,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1768944640, now seen corresponding path program 1 times [2020-09-25 06:28:53,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:53,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783143583] [2020-09-25 06:28:53,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:53,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:57,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:58,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-25 06:28:58,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:28:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-09-25 06:28:58,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:58,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:28:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 06:28:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-25 06:28:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:58,956 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:28:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:59,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 06:28:59,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 06:28:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 06:28:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:59,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:59,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:28:59,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 06:28:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:28:59,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 06:28:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 06:28:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:28:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:28:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 06:28:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:28:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 06:28:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 06:28:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 06:28:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:28:59,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:28:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:28:59,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:28:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:28:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:28:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-25 06:28:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-25 06:28:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 06:28:59,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783143583] [2020-09-25 06:28:59,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:59,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:28:59,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638502262] [2020-09-25 06:28:59,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:28:59,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:28:59,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:28:59,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:28:59,555 INFO L87 Difference]: Start difference. First operand 359 states and 401 transitions. Second operand 6 states. [2020-09-25 06:29:00,188 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 06:29:04,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:04,013 INFO L93 Difference]: Finished difference Result 846 states and 995 transitions. [2020-09-25 06:29:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:29:04,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-09-25 06:29:04,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:04,020 INFO L225 Difference]: With dead ends: 846 [2020-09-25 06:29:04,020 INFO L226 Difference]: Without dead ends: 639 [2020-09-25 06:29:04,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:29:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-09-25 06:29:04,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 556. [2020-09-25 06:29:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-25 06:29:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 636 transitions. [2020-09-25 06:29:04,113 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 636 transitions. Word has length 235 [2020-09-25 06:29:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:04,114 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 636 transitions. [2020-09-25 06:29:04,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:29:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 636 transitions. [2020-09-25 06:29:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-25 06:29:04,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:04,120 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:04,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:29:04,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:04,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1023057379, now seen corresponding path program 1 times [2020-09-25 06:29:04,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:04,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151448841] [2020-09-25 06:29:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:04,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:05,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:05,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-25 06:29:09,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:29:09,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:29:09,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:29:09,832 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 06:29:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:09,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:29:09,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:29:09,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:09,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:09,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:09,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 06:29:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:29:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:29:10,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 06:29:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:29:10,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:29:10,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 06:29:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:10,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 06:29:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:29:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:10,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 06:29:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 06:29:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 06:29:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:29:10,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 06:29:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:10,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:29:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:10,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:10,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 06:29:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:29:10,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:29:10,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:10,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:29:10,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 06:29:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:10,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:10,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-25 06:29:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:10,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:29:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:10,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:29:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:10,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 06:29:10,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151448841] [2020-09-25 06:29:10,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:29:10,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:29:10,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667240936] [2020-09-25 06:29:10,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:29:10,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:10,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:29:10,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:29:10,457 INFO L87 Difference]: Start difference. First operand 556 states and 636 transitions. Second operand 11 states. [2020-09-25 06:29:11,075 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 06:29:13,281 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 06:29:13,683 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-09-25 06:29:14,063 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 06:29:14,481 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-09-25 06:29:14,861 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-25 06:29:16,020 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 06:29:16,412 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 06:29:16,822 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 06:29:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:19,184 INFO L93 Difference]: Finished difference Result 1323 states and 1646 transitions. [2020-09-25 06:29:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 06:29:19,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 244 [2020-09-25 06:29:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:19,192 INFO L225 Difference]: With dead ends: 1323 [2020-09-25 06:29:19,192 INFO L226 Difference]: Without dead ends: 919 [2020-09-25 06:29:19,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2020-09-25 06:29:19,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-09-25 06:29:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 838. [2020-09-25 06:29:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-09-25 06:29:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 997 transitions. [2020-09-25 06:29:19,332 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 997 transitions. Word has length 244 [2020-09-25 06:29:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:19,333 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 997 transitions. [2020-09-25 06:29:19,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:29:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 997 transitions. [2020-09-25 06:29:19,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 06:29:19,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:19,339 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:19,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:29:19,340 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:19,340 INFO L82 PathProgramCache]: Analyzing trace with hash 439173465, now seen corresponding path program 1 times [2020-09-25 06:29:19,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:19,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108227935] [2020-09-25 06:29:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:19,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:20,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking...