/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec2_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:04:44,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:04:44,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:04:44,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:04:44,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:04:44,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:04:44,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:04:44,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:04:44,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:04:44,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:04:44,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:04:44,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:04:44,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:04:44,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:04:44,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:04:44,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:04:44,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:04:44,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:04:44,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:04:44,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:04:44,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:04:44,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:04:44,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:04:44,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:04:44,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:04:44,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:04:44,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:04:44,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:04:44,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:04:44,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:04:44,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:04:44,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:04:44,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:04:44,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:04:44,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:04:44,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:04:44,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:04:44,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:04:44,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:04:44,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:04:44,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:04:44,954 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 04:04:45,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:04:45,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:04:45,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:04:45,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:04:45,019 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:04:45,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:04:45,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:04:45,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:04:45,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:04:45,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:04:45,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:04:45,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:04:45,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:04:45,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:04:45,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:04:45,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:04:45,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:04:45,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:04:45,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:04:45,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:04:45,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:04:45,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:04:45,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:04:45,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:04:45,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:04:45,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:04:45,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:04:45,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:04:45,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:04:45,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:04:45,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:04:45,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:04:45,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:04:45,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:04:45,561 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:04:45,562 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-09-25 04:04:45,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e323c2dbf/c89798c23d64491bac8dd793ccba9598/FLAG4e08e646f [2020-09-25 04:04:46,252 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:04:46,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product47.cil.c [2020-09-25 04:04:46,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e323c2dbf/c89798c23d64491bac8dd793ccba9598/FLAG4e08e646f [2020-09-25 04:04:46,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e323c2dbf/c89798c23d64491bac8dd793ccba9598 [2020-09-25 04:04:46,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:04:46,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:04:46,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:04:46,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:04:46,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:04:46,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:04:46" (1/1) ... [2020-09-25 04:04:46,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623015b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:46, skipping insertion in model container [2020-09-25 04:04:46,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:04:46" (1/1) ... [2020-09-25 04:04:46,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:04:46,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:04:47,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:04:47,159 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:04:47,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:04:47,278 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:04:47,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47 WrapperNode [2020-09-25 04:04:47,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:04:47,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:04:47,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:04:47,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:04:47,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (1/1) ... [2020-09-25 04:04:47,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:04:47,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:04:47,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:04:47,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:04:47,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (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 04:04:47,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:04:47,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:04:47,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:04:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:04:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:04:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:04:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:04:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:04:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:04:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:04:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:04:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:04:47,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:04:47,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:04:47,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:04:47,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:04:47,484 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:04:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:04:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:04:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:04:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:04:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:04:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:04:47,486 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:04:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:04:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:04:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:04:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:04:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:04:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:04:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:04:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:04:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:04:47,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:04:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:04:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:04:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:04:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:04:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:04:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:04:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:04:47,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:04:47,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:04:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:04:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:04:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:04:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:04:47,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:04:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:04:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:04:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:04:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:04:47,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:04:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:04:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:04:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:04:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:04:47,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:04:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:04:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:04:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:04:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:04:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:04:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:04:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:04:47,504 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:04:47,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:04:47,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:04:47,505 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:04:47,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:04:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:04:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:04:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:04:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:04:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:04:48,809 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:04:48,809 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:04:48,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:04:48 BoogieIcfgContainer [2020-09-25 04:04:48,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:04:48,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:04:48,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:04:48,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:04:48,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:04:46" (1/3) ... [2020-09-25 04:04:48,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1437847b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:04:48, skipping insertion in model container [2020-09-25 04:04:48,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:04:47" (2/3) ... [2020-09-25 04:04:48,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1437847b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:04:48, skipping insertion in model container [2020-09-25 04:04:48,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:04:48" (3/3) ... [2020-09-25 04:04:48,829 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2020-09-25 04:04:48,842 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:04:48,855 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:04:48,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:04:48,917 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:04:48,918 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:04:48,918 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:04:48,918 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:04:48,918 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:04:48,918 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:04:48,919 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:04:48,919 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:04:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-25 04:04:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:04:48,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:48,975 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] [2020-09-25 04:04:48,976 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:48,986 INFO L82 PathProgramCache]: Analyzing trace with hash -149848456, now seen corresponding path program 1 times [2020-09-25 04:04:48,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:48,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144747626] [2020-09-25 04:04:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:49,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:49,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:54,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:54,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:04:54,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:04:54,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 04:04:54,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:54,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:54,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:04:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 04:04:54,918 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:04:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:04:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:54,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:04:55,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 04:04:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:04:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:55,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:55,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:04:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:55,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:55,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:04:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:55,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:55,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:04:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:04:55,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:04:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:04:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:04:55,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:04:55,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:04:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 04:04:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:55,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:04:55,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:04:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:55,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:04:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:04:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:04:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:04:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:04:55,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:04:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:04:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:04:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:04:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:04:55,287 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 04:04:55,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144747626] [2020-09-25 04:04:55,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:04:55,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:04:55,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124815082] [2020-09-25 04:04:55,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:04:55,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:04:55,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:04:55,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:55,329 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 4 states. [2020-09-25 04:04:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:04:56,908 INFO L93 Difference]: Finished difference Result 515 states and 614 transitions. [2020-09-25 04:04:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:04:56,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 04:04:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:04:56,932 INFO L225 Difference]: With dead ends: 515 [2020-09-25 04:04:56,932 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 04:04:56,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:04:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 04:04:57,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 274. [2020-09-25 04:04:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 04:04:57,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 301 transitions. [2020-09-25 04:04:57,096 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 301 transitions. Word has length 148 [2020-09-25 04:04:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:04:57,101 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 301 transitions. [2020-09-25 04:04:57,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:04:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 301 transitions. [2020-09-25 04:04:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 04:04:57,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:04:57,120 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] [2020-09-25 04:04:57,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:04:57,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:04:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:04:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash -807647223, now seen corresponding path program 1 times [2020-09-25 04:04:57,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:04:57,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304513268] [2020-09-25 04:04:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:04:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:04:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:04:59,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:05:02,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:05:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 04:05:02,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:05:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:05:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:05:02,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,546 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:05:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:05:02,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 04:05:02,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:05:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:02,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:02,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:05:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:02,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:05:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:05:02,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:05:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:02,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:02,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:05:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:02,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:05:02,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 04:05:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:02,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:02,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:02,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:05:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:02,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:02,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:02,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:02,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:02,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:02,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:02,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:02,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:02,800 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 04:05:02,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304513268] [2020-09-25 04:05:02,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:02,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:05:02,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113488153] [2020-09-25 04:05:02,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:05:02,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:02,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:05:02,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:05:02,808 INFO L87 Difference]: Start difference. First operand 274 states and 301 transitions. Second operand 5 states. [2020-09-25 04:05:03,578 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:04,777 INFO L93 Difference]: Finished difference Result 438 states and 501 transitions. [2020-09-25 04:05:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:05:04,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 04:05:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:04,790 INFO L225 Difference]: With dead ends: 438 [2020-09-25 04:05:04,791 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 04:05:04,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:05:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 04:05:04,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 264. [2020-09-25 04:05:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 04:05:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 288 transitions. [2020-09-25 04:05:04,840 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 288 transitions. Word has length 149 [2020-09-25 04:05:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:04,841 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 288 transitions. [2020-09-25 04:05:04,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:05:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 288 transitions. [2020-09-25 04:05:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 04:05:04,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:04,844 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] [2020-09-25 04:05:04,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:05:04,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:04,845 INFO L82 PathProgramCache]: Analyzing trace with hash 603003046, now seen corresponding path program 1 times [2020-09-25 04:05:04,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:04,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064278184] [2020-09-25 04:05:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:05,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:07,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:09,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:09,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 04:05:09,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:05:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 04:05:09,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:09,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:05:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 04:05:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:05:09,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,264 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:05:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:05:10,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:05:10,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:05:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:10,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:10,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:10,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:05:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:10,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:05:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:10,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:05:10,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:05:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:10,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:10,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:05:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:05:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:10,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:10,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:05:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:05:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:05:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:10,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:05:10,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:10,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:05:10,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:10,558 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 04:05:10,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064278184] [2020-09-25 04:05:10,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:10,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:05:10,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112555467] [2020-09-25 04:05:10,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:05:10,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:10,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:05:10,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:05:10,563 INFO L87 Difference]: Start difference. First operand 264 states and 288 transitions. Second operand 9 states. [2020-09-25 04:05:11,166 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:12,543 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:05:12,923 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 04:05:13,273 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:05:13,654 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:05:13,979 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:05:14,973 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:15,309 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:05:15,658 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:16,419 INFO L93 Difference]: Finished difference Result 555 states and 660 transitions. [2020-09-25 04:05:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:05:16,420 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-25 04:05:16,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:16,425 INFO L225 Difference]: With dead ends: 555 [2020-09-25 04:05:16,425 INFO L226 Difference]: Without dead ends: 406 [2020-09-25 04:05:16,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:05:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-09-25 04:05:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 354. [2020-09-25 04:05:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 04:05:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 391 transitions. [2020-09-25 04:05:16,505 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 391 transitions. Word has length 158 [2020-09-25 04:05:16,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:16,505 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 391 transitions. [2020-09-25 04:05:16,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:05:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 391 transitions. [2020-09-25 04:05:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 04:05:16,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:16,509 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:05:16,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:05:16,510 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:16,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:16,510 INFO L82 PathProgramCache]: Analyzing trace with hash 2063388443, now seen corresponding path program 1 times [2020-09-25 04:05:16,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:16,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664786471] [2020-09-25 04:05:16,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:16,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:17,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:17,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:21,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:21,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 04:05:21,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:05:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 04:05:21,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:21,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:05:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 04:05:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:05:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:21,846 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:05:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:21,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:21,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:05:21,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:05:21,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:21,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:21,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:05:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:21,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:21,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:21,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:21,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:21,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:21,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:21,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:21,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:21,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:05:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:21,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:21,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:21,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:21,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:21,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:21,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:21,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:05:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:22,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:05:22,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:05:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:22,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:22,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:05:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:05:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:05:22,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:05:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:05:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:05:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:05:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:05:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:05:22,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:05:22,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:05:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:05:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:05:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:05:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:05:22,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:05:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:05:22,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:05:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:05:22,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:05:22,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:05:22,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:05:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:05:22,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:05:22,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:05:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:05:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:05:22,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:22,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:05:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:22,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:22,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:05:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:22,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:05:22,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:05:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:22,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:22,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 04:05:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:22,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:22,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:22,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:22,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:22,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:22,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:22,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:22,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:05:22,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664786471] [2020-09-25 04:05:22,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:22,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:05:22,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044476874] [2020-09-25 04:05:22,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:05:22,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:22,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:05:22,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:05:22,666 INFO L87 Difference]: Start difference. First operand 354 states and 391 transitions. Second operand 10 states. [2020-09-25 04:05:24,430 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:05:24,753 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:05:25,087 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 04:05:25,437 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:25,764 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:05:26,080 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:05:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:27,148 INFO L93 Difference]: Finished difference Result 681 states and 813 transitions. [2020-09-25 04:05:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:05:27,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-09-25 04:05:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:27,153 INFO L225 Difference]: With dead ends: 681 [2020-09-25 04:05:27,153 INFO L226 Difference]: Without dead ends: 442 [2020-09-25 04:05:27,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:05:27,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-25 04:05:27,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 371. [2020-09-25 04:05:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 04:05:27,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 410 transitions. [2020-09-25 04:05:27,206 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 410 transitions. Word has length 218 [2020-09-25 04:05:27,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:27,206 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 410 transitions. [2020-09-25 04:05:27,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:05:27,207 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 410 transitions. [2020-09-25 04:05:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 04:05:27,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:27,210 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:05:27,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:05:27,211 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:27,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1563832453, now seen corresponding path program 1 times [2020-09-25 04:05:27,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:27,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194688361] [2020-09-25 04:05:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:27,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 04:05:32,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:05:32,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 04:05:32,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-25 04:05:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:05:32,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:32,594 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:05:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:05:32,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:05:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:32,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:32,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:32,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:05:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:32,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:32,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:05:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:32,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:32,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:05:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:32,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:05:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:32,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:32,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:32,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:32,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:32,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:32,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:05:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:05:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 04:05:32,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:05:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:05:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:32,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:05:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:05:32,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:32,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 04:05:32,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:32,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:32,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:05:32,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:05:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:32,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:05:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:32,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:32,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:32,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:05:33,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 04:05:33,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:05:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:05:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:05:33,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:05:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:05:33,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:05:33,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:05:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:05:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:05:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 04:05:33,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:05:33,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 04:05:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:05:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:05:33,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:33,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:33,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:05:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:33,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:05:33,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 04:05:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:05:33,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:33,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 04:05:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:33,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:33,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:33,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 04:05:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:33,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:33,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:33,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:33,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:33,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:05:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:05:33,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194688361] [2020-09-25 04:05:33,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:33,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:05:33,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848035399] [2020-09-25 04:05:33,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:05:33,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:05:33,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:05:33,183 INFO L87 Difference]: Start difference. First operand 371 states and 410 transitions. Second operand 9 states.