/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:54:07,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:54:07,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:54:07,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:54:07,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:54:07,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:54:07,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:54:07,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:54:07,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:54:07,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:54:07,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:54:07,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:54:07,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:54:07,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:54:07,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:54:07,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:54:07,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:54:07,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:54:07,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:54:07,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:54:07,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:54:07,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:54:07,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:54:07,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:54:07,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:54:07,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:54:07,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:54:07,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:54:07,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:54:07,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:54:07,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:54:07,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:54:07,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:54:07,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:54:07,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:54:07,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:54:07,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:54:07,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:54:07,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:54:07,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:54:07,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:54:07,665 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 02:54:07,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:54:07,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:54:07,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:54:07,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:54:07,692 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:54:07,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:54:07,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:54:07,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:54:07,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:54:07,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:54:07,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:54:07,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:54:07,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:54:07,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:54:07,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:54:07,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:54:07,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:54:07,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:54:07,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:54:07,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:54:07,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:54:07,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:07,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:54:07,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:54:07,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:54:07,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:54:07,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:54:07,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:54:07,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:54:07,697 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:54:08,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:54:08,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:54:08,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:54:08,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:54:08,188 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:54:08,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 02:54:08,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e61f9129f/6a475ea351854678b271f4704565e9ab/FLAGa59c0167b [2020-09-25 02:54:08,879 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:54:08,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 02:54:08,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e61f9129f/6a475ea351854678b271f4704565e9ab/FLAGa59c0167b [2020-09-25 02:54:09,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e61f9129f/6a475ea351854678b271f4704565e9ab [2020-09-25 02:54:09,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:54:09,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:54:09,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:09,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:54:09,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:54:09,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33932146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09, skipping insertion in model container [2020-09-25 02:54:09,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:54:09,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:54:09,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:09,786 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:54:09,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:09,931 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:54:09,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09 WrapperNode [2020-09-25 02:54:09,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:09,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:54:09,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:54:09,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:54:09,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:10,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:10,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:10,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:10,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:54:10,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:54:10,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:54:10,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:54:10,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (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 02:54:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:54:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:54:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:54:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:54:10,131 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:54:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:54:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:54:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:54:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:54:10,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:54:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:54:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:54:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:54:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:54:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:54:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:54:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:54:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:54:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:54:10,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:54:10,138 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:54:10,138 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:54:10,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:54:10,140 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:54:10,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:54:10,140 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:54:10,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:54:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:54:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:54:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:54:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:54:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:54:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:54:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:54:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:54:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:54:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:54:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:54:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:54:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:54:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:54:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:54:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:54:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:54:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:54:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:54:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:54:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:54:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:54:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:54:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:54:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:54:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:54:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:54:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:54:11,372 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:54:11,373 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:54:11,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:11 BoogieIcfgContainer [2020-09-25 02:54:11,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:54:11,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:54:11,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:54:11,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:54:11,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:54:09" (1/3) ... [2020-09-25 02:54:11,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a49982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:11, skipping insertion in model container [2020-09-25 02:54:11,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (2/3) ... [2020-09-25 02:54:11,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a49982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:11, skipping insertion in model container [2020-09-25 02:54:11,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:11" (3/3) ... [2020-09-25 02:54:11,396 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-09-25 02:54:11,409 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:54:11,424 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:54:11,449 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:54:11,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:54:11,498 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:54:11,498 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:54:11,499 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:54:11,499 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:54:11,500 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:54:11,500 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:54:11,501 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:54:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-09-25 02:54:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:54:11,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:11,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:11,579 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:11,592 INFO L82 PathProgramCache]: Analyzing trace with hash 254159831, now seen corresponding path program 1 times [2020-09-25 02:54:11,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:11,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070713005] [2020-09-25 02:54:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:12,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:12,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:14,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:17,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:17,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:54:17,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:54:17,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-09-25 02:54:17,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:17,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:54:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:54:17,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 02:54:17,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 02:54:17,664 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:17,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:17,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:18,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 02:54:18,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:54:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:18,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:18,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:18,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:18,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:18,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:18,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:18,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:18,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:18,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:18,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:18,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:18,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:54:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:18,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:18,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:18,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:18,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:18,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:18,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070713005] [2020-09-25 02:54:18,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:18,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:54:18,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779428287] [2020-09-25 02:54:18,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:54:18,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:18,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:54:18,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:54:18,326 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 8 states. [2020-09-25 02:54:18,989 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:20,315 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:20,692 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:21,060 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:21,391 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:21,737 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:22,511 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:22,822 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:23,196 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:24,599 INFO L93 Difference]: Finished difference Result 629 states and 785 transitions. [2020-09-25 02:54:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:54:24,601 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:54:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:24,624 INFO L225 Difference]: With dead ends: 629 [2020-09-25 02:54:24,624 INFO L226 Difference]: Without dead ends: 418 [2020-09-25 02:54:24,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:54:24,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-25 02:54:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 373. [2020-09-25 02:54:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 02:54:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 428 transitions. [2020-09-25 02:54:24,774 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 428 transitions. Word has length 142 [2020-09-25 02:54:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:24,776 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 428 transitions. [2020-09-25 02:54:24,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:54:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 428 transitions. [2020-09-25 02:54:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 02:54:24,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:24,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:24,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:54:24,781 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:24,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1391762867, now seen corresponding path program 1 times [2020-09-25 02:54:24,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:24,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327651020] [2020-09-25 02:54:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:26,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 02:54:29,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:54:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 02:54:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:54:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:54:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 02:54:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:30,149 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:30,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 02:54:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:54:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:30,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:30,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:30,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:30,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:30,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:30,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:30,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:30,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:30,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 02:54:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:30,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:30,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 02:54:30,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:54:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:30,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:30,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:30,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:54:30,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:54:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:30,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 02:54:30,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:54:30,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:30,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:30,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:30,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:54:30,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:30,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:30,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:30,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:30,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 02:54:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:30,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:30,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 02:54:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:31,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:31,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:31,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:31,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:31,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:54:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:31,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327651020] [2020-09-25 02:54:31,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:31,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 02:54:31,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542705554] [2020-09-25 02:54:31,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:54:31,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:31,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:54:31,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:54:31,197 INFO L87 Difference]: Start difference. First operand 373 states and 428 transitions. Second operand 14 states. [2020-09-25 02:54:31,806 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:33,128 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 02:54:33,798 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 194 [2020-09-25 02:54:34,216 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:34,620 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:34,954 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:35,737 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:36,071 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:36,401 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:54:36,735 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:37,086 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 02:54:37,419 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:37,850 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:54:38,193 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:38,543 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:39,287 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:39,609 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:39,938 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:40,290 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:40,678 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:40,990 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:41,295 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:43,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:43,429 INFO L93 Difference]: Finished difference Result 1038 states and 1357 transitions. [2020-09-25 02:54:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 02:54:43,431 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 181 [2020-09-25 02:54:43,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:43,441 INFO L225 Difference]: With dead ends: 1038 [2020-09-25 02:54:43,441 INFO L226 Difference]: Without dead ends: 729 [2020-09-25 02:54:43,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=224, Invalid=1182, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 02:54:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-25 02:54:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 611. [2020-09-25 02:54:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-25 02:54:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 705 transitions. [2020-09-25 02:54:43,550 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 705 transitions. Word has length 181 [2020-09-25 02:54:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:43,551 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 705 transitions. [2020-09-25 02:54:43,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:54:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 705 transitions. [2020-09-25 02:54:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 02:54:43,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:43,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:43,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:54:43,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:43,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:43,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1343135325, now seen corresponding path program 1 times [2020-09-25 02:54:43,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:43,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722304531] [2020-09-25 02:54:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:43,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:43,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:43,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:44,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-25 02:54:48,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:54:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 02:54:48,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:54:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 02:54:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,899 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:48,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 02:54:49,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:49,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:49,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:49,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:49,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:49,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 02:54:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:49,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 02:54:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:54:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:54:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:54:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:49,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 02:54:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:54:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:49,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 02:54:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:49,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 02:54:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:54:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:49,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 02:54:49,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:54:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:49,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:49,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 02:54:49,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:49,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:54:49,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:49,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:49,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:49,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 02:54:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-25 02:54:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:49,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:54:49,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722304531] [2020-09-25 02:54:49,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:49,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 02:54:49,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894622832] [2020-09-25 02:54:49,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 02:54:49,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:49,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 02:54:49,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:54:49,804 INFO L87 Difference]: Start difference. First operand 611 states and 705 transitions. Second operand 17 states. [2020-09-25 02:54:50,681 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:51,803 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:52,493 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:52,863 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:53,254 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:53,613 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:53,972 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:54,296 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:54,628 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:55,006 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:55,318 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:55,672 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:56,035 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:56,376 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:56,691 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:57,120 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:57,441 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:57,773 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:58,101 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:58,485 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:58,887 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:59,243 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190