/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:14:45,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:14:45,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:14:45,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:14:45,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:14:45,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:14:45,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:14:45,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:14:45,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:14:45,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:14:45,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:14:45,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:14:45,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:14:45,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:14:45,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:14:45,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:14:45,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:14:45,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:14:45,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:14:45,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:14:45,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:14:45,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:14:45,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:14:45,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:14:45,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:14:45,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:14:45,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:14:45,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:14:45,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:14:45,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:14:45,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:14:45,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:14:45,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:14:45,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:14:45,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:14:45,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:14:45,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:14:45,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:14:45,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:14:45,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:14:45,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:14:45,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:14:45,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:14:45,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:14:45,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:14:45,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:14:45,546 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:14:45,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:14:45,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:14:45,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:14:45,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:14:45,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:14:45,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:14:45,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:14:45,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:14:45,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:14:45,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:14:45,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:14:45,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:14:45,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:14:45,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:14:45,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:14:45,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:14:45,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:45,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:14:45,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:14:45,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:14:46,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:14:46,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:14:46,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:14:46,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:14:46,094 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:14:46,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 13:14:46,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51445a881/b31aa7c0c8304621801df29238cc085b/FLAGbedf8a045 [2020-09-25 13:14:46,762 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:14:46,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-25 13:14:46,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51445a881/b31aa7c0c8304621801df29238cc085b/FLAGbedf8a045 [2020-09-25 13:14:47,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51445a881/b31aa7c0c8304621801df29238cc085b [2020-09-25 13:14:47,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:14:47,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:14:47,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:47,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:14:47,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:14:47,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47, skipping insertion in model container [2020-09-25 13:14:47,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:14:47,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:14:47,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:47,536 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:14:47,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:47,833 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:14:47,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47 WrapperNode [2020-09-25 13:14:47,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:47,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:14:47,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:14:47,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:14:47,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... [2020-09-25 13:14:47,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:14:47,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:14:47,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:14:47,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:14:47,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:14:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:14:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:14:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:14:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:14:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:14:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:14:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:14:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:14:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:14:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:14:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:14:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:14:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:14:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:14:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:14:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:14:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:14:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:14:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:14:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:14:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:14:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:14:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:14:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:14:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:14:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:14:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:14:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:14:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:14:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:14:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:14:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:14:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:14:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:14:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:14:49,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:14:49,196 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:14:49,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:49 BoogieIcfgContainer [2020-09-25 13:14:49,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:14:49,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:14:49,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:14:49,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:14:49,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:14:47" (1/3) ... [2020-09-25 13:14:49,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:49, skipping insertion in model container [2020-09-25 13:14:49,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:47" (2/3) ... [2020-09-25 13:14:49,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:49, skipping insertion in model container [2020-09-25 13:14:49,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:49" (3/3) ... [2020-09-25 13:14:49,213 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-09-25 13:14:49,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:14:49,236 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:14:49,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:14:49,292 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:14:49,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:14:49,293 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:14:49,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:14:49,293 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:14:49,293 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:14:49,293 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:14:49,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:14:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 13:14:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:14:49,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:49,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:49,342 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:49,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1206638140, now seen corresponding path program 1 times [2020-09-25 13:14:49,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:49,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821650864] [2020-09-25 13:14:49,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:49,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:51,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:52,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:14:54,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 13:14:54,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:14:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:14:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:14:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:14:55,473 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:55,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:55,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:55,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:55,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:55,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:55,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 13:14:55,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:55,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:14:55,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:55,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:55,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:55,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:55,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:55,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:56,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:56,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:56,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:56,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:56,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:14:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:56,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:56,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:14:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:56,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:14:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:56,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:56,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:14:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:56,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:56,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:56,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:56,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:56,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:56,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821650864] [2020-09-25 13:14:56,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:56,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:14:56,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188885281] [2020-09-25 13:14:56,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:14:56,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:56,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:14:56,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:14:56,154 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2020-09-25 13:14:56,953 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:59,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:59,393 INFO L93 Difference]: Finished difference Result 674 states and 817 transitions. [2020-09-25 13:14:59,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:14:59,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:14:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:59,428 INFO L225 Difference]: With dead ends: 674 [2020-09-25 13:14:59,429 INFO L226 Difference]: Without dead ends: 473 [2020-09-25 13:14:59,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:14:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-25 13:14:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406. [2020-09-25 13:14:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 13:14:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 453 transitions. [2020-09-25 13:14:59,645 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 453 transitions. Word has length 142 [2020-09-25 13:14:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:59,646 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 453 transitions. [2020-09-25 13:14:59,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:14:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 453 transitions. [2020-09-25 13:14:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:14:59,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:59,652 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 13:14:59,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:14:59,652 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:59,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:59,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1285534498, now seen corresponding path program 1 times [2020-09-25 13:14:59,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:59,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969195363] [2020-09-25 13:14:59,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:59,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:59,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:04,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:15:04,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 13:15:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:04,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:15:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:15:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:15:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,082 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:05,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:05,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 13:15:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:15:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:05,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:05,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:05,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:05,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:05,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:05,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:05,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:05,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:05,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:05,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:15:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:05,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:15:05,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:15:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:05,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:15:05,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:15:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:05,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:05,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:15:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:05,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:05,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:15:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:05,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:05,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969195363] [2020-09-25 13:15:05,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:05,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:15:05,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648971876] [2020-09-25 13:15:05,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:15:05,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:05,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:15:05,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:15:05,611 INFO L87 Difference]: Start difference. First operand 406 states and 453 transitions. Second operand 6 states. [2020-09-25 13:15:06,206 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:07,788 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:09,204 INFO L93 Difference]: Finished difference Result 1096 states and 1360 transitions. [2020-09-25 13:15:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:15:09,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 13:15:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:09,212 INFO L225 Difference]: With dead ends: 1096 [2020-09-25 13:15:09,212 INFO L226 Difference]: Without dead ends: 800 [2020-09-25 13:15:09,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:15:09,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-09-25 13:15:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 657. [2020-09-25 13:15:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-25 13:15:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 751 transitions. [2020-09-25 13:15:09,319 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 751 transitions. Word has length 156 [2020-09-25 13:15:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:09,320 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 751 transitions. [2020-09-25 13:15:09,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:15:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 751 transitions. [2020-09-25 13:15:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:15:09,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:09,324 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] [2020-09-25 13:15:09,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:15:09,324 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1856383956, now seen corresponding path program 1 times [2020-09-25 13:15:09,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:09,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992325767] [2020-09-25 13:15:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:10,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:13,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:14,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:14,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 13:15:14,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 13:15:14,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:14,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:15:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:15:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 13:15:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:14,837 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:14,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:14,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:15,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 13:15:15,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:15:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:15,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:15,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:15,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:15,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:15,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:15,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:15,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:15,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:15,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:15,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:15,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:15:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:15,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:15:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:15,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:15,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:15:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:15,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:15,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:15,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:15,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:15,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:15,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:15,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992325767] [2020-09-25 13:15:15,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:15,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:15:15,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534431997] [2020-09-25 13:15:15,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:15:15,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:15,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:15:15,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:15:15,367 INFO L87 Difference]: Start difference. First operand 657 states and 751 transitions. Second operand 10 states. [2020-09-25 13:15:15,903 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:17,415 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:15:17,965 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:15:18,309 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:18,639 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:15:18,963 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:20,035 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:20,383 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:15:20,850 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:22,453 INFO L93 Difference]: Finished difference Result 1668 states and 2113 transitions. [2020-09-25 13:15:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:15:22,454 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 13:15:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:22,463 INFO L225 Difference]: With dead ends: 1668 [2020-09-25 13:15:22,463 INFO L226 Difference]: Without dead ends: 1121 [2020-09-25 13:15:22,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:15:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-09-25 13:15:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1023. [2020-09-25 13:15:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-09-25 13:15:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1243 transitions. [2020-09-25 13:15:22,621 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1243 transitions. Word has length 161 [2020-09-25 13:15:22,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:22,622 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1243 transitions. [2020-09-25 13:15:22,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1243 transitions. [2020-09-25 13:15:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-25 13:15:22,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:22,628 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:22,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:15:22,629 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:22,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:22,629 INFO L82 PathProgramCache]: Analyzing trace with hash 228550671, now seen corresponding path program 1 times [2020-09-25 13:15:22,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:22,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71782459] [2020-09-25 13:15:22,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:22,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:22,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:23,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:25,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:27,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:27,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-25 13:15:27,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:15:27,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 13:15:27,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:27,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 13:15:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:15:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,031 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:28,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:28,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 13:15:28,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:28,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:28,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:28,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:28,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 13:15:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:28,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 13:15:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:15:28,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:15:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:15:28,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:28,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:28,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 13:15:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 13:15:28,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:28,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 13:15:28,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 13:15:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:15:28,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 13:15:28,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 13:15:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:15:28,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 13:15:28,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:15:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:28,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 13:15:28,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:15:28,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:28,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:28,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:28,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:15:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:15:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:28,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:28,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:15:28,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:28,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:28,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 13:15:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-09-25 13:15:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-25 13:15:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:28,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:28,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 13:15:28,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71782459] [2020-09-25 13:15:28,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:28,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:15:28,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235681332] [2020-09-25 13:15:28,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:15:28,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:15:28,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:15:28,902 INFO L87 Difference]: Start difference. First operand 1023 states and 1243 transitions. Second operand 13 states. [2020-09-25 13:15:29,729 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:30,830 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:31,147 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:31,460 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:15:31,813 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:32,190 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:15:32,529 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:34,073 INFO L93 Difference]: Finished difference Result 2076 states and 2585 transitions. [2020-09-25 13:15:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 13:15:34,074 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 253 [2020-09-25 13:15:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:34,085 INFO L225 Difference]: With dead ends: 2076 [2020-09-25 13:15:34,086 INFO L226 Difference]: Without dead ends: 1163 [2020-09-25 13:15:34,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2020-09-25 13:15:34,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2020-09-25 13:15:34,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 967. [2020-09-25 13:15:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-09-25 13:15:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1109 transitions. [2020-09-25 13:15:34,233 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1109 transitions. Word has length 253 [2020-09-25 13:15:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:34,234 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1109 transitions. [2020-09-25 13:15:34,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:15:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1109 transitions. [2020-09-25 13:15:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 13:15:34,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:34,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:34,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:15:34,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:34,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:34,242 INFO L82 PathProgramCache]: Analyzing trace with hash -590247581, now seen corresponding path program 1 times [2020-09-25 13:15:34,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:34,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711337817] [2020-09-25 13:15:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:34,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:34,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:34,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking...