/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:21:20,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:21:21,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:21:21,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:21:21,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:21:21,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:21:21,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:21:21,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:21:21,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:21:21,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:21:21,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:21:21,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:21:21,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:21:21,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:21:21,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:21:21,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:21:21,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:21:21,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:21:21,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:21:21,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:21:21,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:21:21,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:21:21,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:21:21,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:21:21,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:21:21,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:21:21,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:21:21,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:21:21,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:21:21,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:21:21,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:21:21,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:21:21,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:21:21,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:21:21,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:21:21,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:21:21,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:21:21,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:21:21,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:21:21,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:21:21,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:21:21,080 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 14:21:21,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:21:21,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:21:21,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:21:21,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:21:21,142 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:21:21,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:21:21,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:21:21,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:21:21,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:21:21,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:21:21,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:21:21,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:21:21,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:21:21,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:21:21,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:21:21,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:21:21,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:21:21,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:21:21,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:21:21,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:21:21,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:21:21,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:21,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:21:21,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:21:21,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:21:21,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:21:21,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:21:21,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:21:21,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:21:21,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:21:21,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:21:21,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:21:21,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:21:21,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:21:21,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:21:21,647 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2020-09-25 14:21:21,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6031d4f93/a993f7fdc05d44c59796bd2d8fbb13a9/FLAGc8e7f9227 [2020-09-25 14:21:22,362 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:21:22,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2020-09-25 14:21:22,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6031d4f93/a993f7fdc05d44c59796bd2d8fbb13a9/FLAGc8e7f9227 [2020-09-25 14:21:22,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6031d4f93/a993f7fdc05d44c59796bd2d8fbb13a9 [2020-09-25 14:21:22,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:21:22,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:21:22,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:22,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:21:22,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:21:22,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:22" (1/1) ... [2020-09-25 14:21:22,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:22, skipping insertion in model container [2020-09-25 14:21:22,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:22" (1/1) ... [2020-09-25 14:21:22,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:21:22,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:21:23,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:23,208 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:21:23,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:23,346 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:21:23,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23 WrapperNode [2020-09-25 14:21:23,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:23,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:21:23,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:21:23,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:21:23,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (1/1) ... [2020-09-25 14:21:23,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:21:23,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:21:23,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:21:23,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:21:23,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (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 14:21:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:21:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:21:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:21:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:21:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:21:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:21:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:21:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:21:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:21:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:21:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:21:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:21:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:21:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:21:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:21:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:21:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:21:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:21:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:21:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:21:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:21:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:21:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:21:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:21:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:21:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:21:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:21:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:21:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:21:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:21:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:21:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:21:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:21:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:21:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:21:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:21:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:21:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:21:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:21:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:21:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:21:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:21:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:21:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:21:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:21:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:21:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:21:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:21:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:21:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:21:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:21:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:21:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:21:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:21:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:21:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:21:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:21:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:21:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:21:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:21:23,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:21:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:21:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:21:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:21:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:21:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:21:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:21:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:21:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:21:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:21:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:21:24,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:21:24,909 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:21:24,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:24 BoogieIcfgContainer [2020-09-25 14:21:24,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:21:24,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:21:24,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:21:24,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:21:24,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:22" (1/3) ... [2020-09-25 14:21:24,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d8222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:24, skipping insertion in model container [2020-09-25 14:21:24,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:23" (2/3) ... [2020-09-25 14:21:24,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d8222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:24, skipping insertion in model container [2020-09-25 14:21:24,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:24" (3/3) ... [2020-09-25 14:21:24,925 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2020-09-25 14:21:24,937 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:21:24,948 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:21:24,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:21:25,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:21:25,000 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:21:25,000 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:21:25,000 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:21:25,000 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:21:25,000 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:21:25,000 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:21:25,001 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:21:25,025 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 14:21:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:21:25,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:25,043 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 14:21:25,043 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:25,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:25,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1499193212, now seen corresponding path program 1 times [2020-09-25 14:21:25,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:25,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271913518] [2020-09-25 14:21:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:25,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:25,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:30,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:30,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:21:30,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:21:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 14:21:30,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:30,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:30,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:30,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:21:30,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:21:30,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:21:30,945 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:30,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:31,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 14:21:31,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:21:31,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:31,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:31,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:31,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:31,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:31,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:31,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:21:31,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:31,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:31,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:31,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:21:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:31,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:31,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:21:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:31,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:31,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:31,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:31,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:31,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:31,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:31,540 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 14:21:31,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271913518] [2020-09-25 14:21:31,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:31,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:21:31,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814403876] [2020-09-25 14:21:31,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:21:31,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:31,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:21:31,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:21:31,579 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-09-25 14:21:32,421 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:33,526 INFO L93 Difference]: Finished difference Result 413 states and 493 transitions. [2020-09-25 14:21:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:21:33,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:21:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:33,562 INFO L225 Difference]: With dead ends: 413 [2020-09-25 14:21:33,562 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 14:21:33,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:21:33,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 14:21:33,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-09-25 14:21:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 14:21:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 240 transitions. [2020-09-25 14:21:33,698 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 240 transitions. Word has length 142 [2020-09-25 14:21:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:33,699 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 240 transitions. [2020-09-25 14:21:33,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:21:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 240 transitions. [2020-09-25 14:21:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:21:33,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:33,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:21:33,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:21:33,706 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:33,707 INFO L82 PathProgramCache]: Analyzing trace with hash 538026231, now seen corresponding path program 1 times [2020-09-25 14:21:33,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:33,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921044434] [2020-09-25 14:21:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:33,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:35,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:21:38,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:38,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 14:21:38,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:21:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:21:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 14:21:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,141 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:39,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 14:21:39,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:21:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:39,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:39,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:39,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:39,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:39,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:39,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:39,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:21:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:39,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:39,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:39,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:21:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:39,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:21:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:39,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:21:39,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:39,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:39,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:21:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:39,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:39,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:39,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:39,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:39,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:39,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:39,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:21:39,690 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 14:21:39,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921044434] [2020-09-25 14:21:39,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:39,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:21:39,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597285099] [2020-09-25 14:21:39,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:21:39,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:21:39,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:21:39,698 INFO L87 Difference]: Start difference. First operand 224 states and 240 transitions. Second operand 9 states. [2020-09-25 14:21:40,384 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:41,575 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:42,215 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:42,576 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:42,927 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:43,238 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:43,529 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:43,842 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:45,246 INFO L93 Difference]: Finished difference Result 538 states and 660 transitions. [2020-09-25 14:21:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:21:45,247 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:21:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:45,253 INFO L225 Difference]: With dead ends: 538 [2020-09-25 14:21:45,253 INFO L226 Difference]: Without dead ends: 424 [2020-09-25 14:21:45,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:21:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-25 14:21:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 330. [2020-09-25 14:21:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-25 14:21:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 369 transitions. [2020-09-25 14:21:45,332 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 369 transitions. Word has length 151 [2020-09-25 14:21:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:45,333 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 369 transitions. [2020-09-25 14:21:45,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:21:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 369 transitions. [2020-09-25 14:21:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:21:45,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:45,339 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] [2020-09-25 14:21:45,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:21:45,339 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:45,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:45,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1250822096, now seen corresponding path program 1 times [2020-09-25 14:21:45,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:45,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475090766] [2020-09-25 14:21:45,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:45,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:45,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:21:50,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:21:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:21:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:21:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:21:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:21:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,707 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:50,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:50,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 14:21:50,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:21:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:51,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:51,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:51,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:51,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:51,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:51,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:51,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:51,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 14:21:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:51,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:51,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:21:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:21:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:51,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:21:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:51,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:21:51,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:21:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:51,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:51,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:21:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:51,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:21:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:51,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:51,129 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 14:21:51,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475090766] [2020-09-25 14:21:51,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:51,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:21:51,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783129514] [2020-09-25 14:21:51,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:21:51,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:51,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:21:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:21:51,131 INFO L87 Difference]: Start difference. First operand 330 states and 369 transitions. Second operand 6 states. [2020-09-25 14:21:51,665 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:52,297 INFO L93 Difference]: Finished difference Result 498 states and 585 transitions. [2020-09-25 14:21:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:21:52,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 14:21:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:52,302 INFO L225 Difference]: With dead ends: 498 [2020-09-25 14:21:52,302 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 14:21:52,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:21:52,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 14:21:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 246. [2020-09-25 14:21:52,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-09-25 14:21:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 262 transitions. [2020-09-25 14:21:52,356 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 262 transitions. Word has length 156 [2020-09-25 14:21:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:52,360 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 262 transitions. [2020-09-25 14:21:52,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:21:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 262 transitions. [2020-09-25 14:21:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:21:52,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:52,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:21:52,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:21:52,369 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:52,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:52,370 INFO L82 PathProgramCache]: Analyzing trace with hash -127648383, now seen corresponding path program 1 times [2020-09-25 14:21:52,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:52,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259940803] [2020-09-25 14:21:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:53,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:53,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:21:57,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:57,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 14:21:57,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:21:57,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:21:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 14:21:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,886 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:57,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:58,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 14:21:58,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:21:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:58,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:58,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:58,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:58,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:58,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:58,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:58,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:58,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:58,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:58,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 14:21:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:21:58,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:21:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:21:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:58,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:21:58,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:21:58,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:21:58,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:21:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:21:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:58,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:58,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:21:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:58,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:58,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:21:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:58,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:58,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:58,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:58,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:58,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:58,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:58,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,499 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 14:21:58,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259940803] [2020-09-25 14:21:58,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:58,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:21:58,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502576490] [2020-09-25 14:21:58,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:21:58,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:58,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:21:58,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:21:58,502 INFO L87 Difference]: Start difference. First operand 246 states and 262 transitions. Second operand 10 states. [2020-09-25 14:21:59,257 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:00,400 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:00,785 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:22:01,100 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:01,458 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:22:01,794 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:02,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:02,042 INFO L93 Difference]: Finished difference Result 269 states and 292 transitions. [2020-09-25 14:22:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:22:02,043 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 14:22:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:02,044 INFO L225 Difference]: With dead ends: 269 [2020-09-25 14:22:02,044 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:22:02,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:22:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:22:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:22:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:22:02,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:22:02,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 14:22:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:02,048 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:22:02,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:22:02,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:22:02,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:22:02,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:22:02,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:22:02,242 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:02,423 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:02,803 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:03,163 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:03,519 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:03,878 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:04,223 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:04,570 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:04,890 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:05,051 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,210 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,368 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,532 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,685 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:05,844 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:06,205 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 10 [2020-09-25 14:22:06,569 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 10 [2020-09-25 14:22:06,728 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:06,886 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:07,039 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:07,393 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:07,736 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:08,141 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 14:22:08,297 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:08,461 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:08,600 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:08,755 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:08,909 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:09,068 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:09,226 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:09,383 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:09,541 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:09,700 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:09,852 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:10,010 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:10,169 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190