/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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:45:57,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:45:57,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:45:57,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:45:57,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:45:57,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:45:57,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:45:57,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:45:57,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:45:57,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:45:57,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:45:57,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:45:57,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:45:57,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:45:57,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:45:57,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:45:57,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:45:57,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:45:57,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:45:57,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:45:57,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:45:57,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:45:57,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:45:57,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:45:57,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:45:57,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:45:57,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:45:57,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:45:57,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:45:57,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:45:57,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:45:57,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:45:57,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:45:57,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:45:57,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:45:57,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:45:57,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:45:57,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:45:57,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:45:57,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:45:57,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:45:57,922 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 08:45:57,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:45:57,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:45:57,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:45:57,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:45:57,967 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:45:57,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:45:57,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:45:57,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:45:57,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:45:57,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:45:57,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:45:57,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:45:57,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:45:57,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:45:57,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:45:57,971 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:45:57,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:45:57,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:45:57,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:45:57,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:45:57,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:45:57,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:45:57,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:45:57,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:45:57,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:45:57,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:45:57,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:45:57,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:45:57,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:45:57,974 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:45:58,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:45:58,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:45:58,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:45:58,480 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:45:58,480 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:45:58,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 08:45:58,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd6b79e6/b39f5aa36496405ba73f3dee164f0e28/FLAGa3c9f8c16 [2020-09-25 08:45:59,185 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:45:59,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-25 08:45:59,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd6b79e6/b39f5aa36496405ba73f3dee164f0e28/FLAGa3c9f8c16 [2020-09-25 08:45:59,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fd6b79e6/b39f5aa36496405ba73f3dee164f0e28 [2020-09-25 08:45:59,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:45:59,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:45:59,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:45:59,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:45:59,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:45:59,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:59" (1/1) ... [2020-09-25 08:45:59,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:45:59, skipping insertion in model container [2020-09-25 08:45:59,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:45:59" (1/1) ... [2020-09-25 08:45:59,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:45:59,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:45:59,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:45:59,979 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:46:00,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:46:00,206 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:46:00,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00 WrapperNode [2020-09-25 08:46:00,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:46:00,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:46:00,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:46:00,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:46:00,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (1/1) ... [2020-09-25 08:46:00,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:46:00,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:46:00,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:46:00,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:46:00,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (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 08:46:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:46:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:46:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:46:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:46:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:46:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:46:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:46:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:46:00,447 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:46:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:46:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:46:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:46:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:46:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:46:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:46:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:46:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:46:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:46:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:46:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:46:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:46:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:46:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:46:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:46:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:46:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:46:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:46:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:46:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:46:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:46:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:46:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:46:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:46:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:46:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:46:01,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:46:01,708 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:46:01,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:46:01 BoogieIcfgContainer [2020-09-25 08:46:01,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:46:01,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:46:01,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:46:01,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:46:01,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:45:59" (1/3) ... [2020-09-25 08:46:01,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2155d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:46:01, skipping insertion in model container [2020-09-25 08:46:01,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:46:00" (2/3) ... [2020-09-25 08:46:01,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2155d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:46:01, skipping insertion in model container [2020-09-25 08:46:01,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:46:01" (3/3) ... [2020-09-25 08:46:01,726 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-25 08:46:01,738 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:46:01,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:46:01,775 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:46:01,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:46:01,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:46:01,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:46:01,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:46:01,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:46:01,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:46:01,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:46:01,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:46:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 08:46:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:46:01,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:01,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:46:01,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:01,874 INFO L82 PathProgramCache]: Analyzing trace with hash 627708892, now seen corresponding path program 1 times [2020-09-25 08:46:01,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:01,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566730422] [2020-09-25 08:46:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:02,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:02,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:07,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:07,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:46:07,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:46:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:46:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:07,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:46:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 08:46:07,895 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:07,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:07,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 08:46:08,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:08,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:08,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:08,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:46:08,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:08,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:08,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:46:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:08,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:08,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:46:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:08,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:08,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:08,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:08,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:08,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:08,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:08,314 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 08:46:08,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566730422] [2020-09-25 08:46:08,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:08,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:46:08,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90782225] [2020-09-25 08:46:08,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:46:08,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:08,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:46:08,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:46:08,350 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-25 08:46:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:09,856 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-09-25 08:46:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:46:09,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:46:09,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:09,879 INFO L225 Difference]: With dead ends: 498 [2020-09-25 08:46:09,879 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 08:46:09,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:46:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 08:46:09,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-09-25 08:46:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 08:46:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-09-25 08:46:09,994 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-09-25 08:46:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:09,995 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-09-25 08:46:09,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:46:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-09-25 08:46:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:46:10,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:10,001 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] [2020-09-25 08:46:10,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:46:10,001 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:10,002 INFO L82 PathProgramCache]: Analyzing trace with hash -157653560, now seen corresponding path program 1 times [2020-09-25 08:46:10,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:10,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621477301] [2020-09-25 08:46:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:10,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:10,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:13,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:46:15,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:46:15,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 08:46:15,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:46:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:46:15,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,410 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:15,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:15,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 08:46:15,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:15,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:15,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:15,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:46:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:15,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:46:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:15,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:15,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:15,676 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 08:46:15,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621477301] [2020-09-25 08:46:15,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:15,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:46:15,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836280132] [2020-09-25 08:46:15,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:46:15,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:15,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:46:15,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:46:15,684 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-09-25 08:46:16,302 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:17,356 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-09-25 08:46:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:46:17,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:46:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:17,364 INFO L225 Difference]: With dead ends: 411 [2020-09-25 08:46:17,365 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 08:46:17,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:46:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 08:46:17,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-09-25 08:46:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 08:46:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-09-25 08:46:17,452 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-09-25 08:46:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:17,452 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-09-25 08:46:17,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:46:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-09-25 08:46:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:46:17,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:17,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:46:17,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:46:17,460 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:17,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:17,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1412760522, now seen corresponding path program 1 times [2020-09-25 08:46:17,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:17,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027952414] [2020-09-25 08:46:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:17,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:17,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:18,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:18,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:22,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:22,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:46:22,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:46:22,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 08:46:22,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:22,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:46:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:46:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:22,862 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:22,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:22,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:22,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 08:46:22,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:22,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:23,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:23,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:23,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:23,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:23,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:23,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:23,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:46:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:23,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:23,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:23,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:46:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:46:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:23,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:23,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:46:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:23,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:23,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:23,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:23,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:23,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:23,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:23,085 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 08:46:23,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027952414] [2020-09-25 08:46:23,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:23,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:46:23,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223942966] [2020-09-25 08:46:23,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:46:23,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:23,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:46:23,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:46:23,088 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 5 states. [2020-09-25 08:46:23,642 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:46:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:24,736 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-09-25 08:46:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:46:24,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:46:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:24,744 INFO L225 Difference]: With dead ends: 457 [2020-09-25 08:46:24,744 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 08:46:24,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 08:46:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 08:46:24,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-09-25 08:46:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 08:46:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-09-25 08:46:24,804 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-09-25 08:46:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:24,805 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-09-25 08:46:24,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:46:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-09-25 08:46:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 08:46:24,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:24,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:46:24,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:46:24,808 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:24,809 INFO L82 PathProgramCache]: Analyzing trace with hash -872720246, now seen corresponding path program 1 times [2020-09-25 08:46:24,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:24,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926933417] [2020-09-25 08:46:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:25,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:27,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:29,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:29,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:29,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 08:46:29,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:46:29,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:46:29,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:29,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:46:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 08:46:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 08:46:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,277 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 08:46:30,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:30,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:30,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:30,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:30,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:30,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:30,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:30,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:30,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:46:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:30,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:30,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:46:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:46:30,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:46:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:46:30,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:46:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:46:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:46:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:46:30,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:46:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:46:30,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:46:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:46:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:46:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:46:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:30,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:30,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:46:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:46:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:46:30,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:46:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:46:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:46:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:30,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:30,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:30,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:46:30,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:30,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:46:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:46:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:30,808 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 08:46:30,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926933417] [2020-09-25 08:46:30,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:30,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 08:46:30,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385439446] [2020-09-25 08:46:30,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:46:30,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:30,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:46:30,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:46:30,812 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 11 states. [2020-09-25 08:46:31,407 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:46:33,282 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 08:46:33,940 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 08:46:34,267 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:46:34,600 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:46:34,940 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:46:35,267 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:46:35,574 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:46:35,906 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:36,686 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-09-25 08:46:38,103 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 189 [2020-09-25 08:46:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:46:39,271 INFO L93 Difference]: Finished difference Result 728 states and 897 transitions. [2020-09-25 08:46:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 08:46:39,272 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 08:46:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:46:39,278 INFO L225 Difference]: With dead ends: 728 [2020-09-25 08:46:39,278 INFO L226 Difference]: Without dead ends: 583 [2020-09-25 08:46:39,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2020-09-25 08:46:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-09-25 08:46:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 365. [2020-09-25 08:46:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 08:46:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 391 transitions. [2020-09-25 08:46:39,342 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 391 transitions. Word has length 169 [2020-09-25 08:46:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:46:39,343 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 391 transitions. [2020-09-25 08:46:39,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:46:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 391 transitions. [2020-09-25 08:46:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 08:46:39,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:46:39,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:46:39,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:46:39,346 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:46:39,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:46:39,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1456700210, now seen corresponding path program 1 times [2020-09-25 08:46:39,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:46:39,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976446051] [2020-09-25 08:46:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:46:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:46:44,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 08:46:44,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:46:44,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:44,701 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:46:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:46:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:46:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 08:46:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:44,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:46:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:44,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:44,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:44,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:46:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:44,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:44,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:44,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:46:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:44,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:44,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:44,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:46:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:46:44,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:44,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:46:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:44,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:46:44,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:44,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:44,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:46:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:44,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:44,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 08:46:44,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:44,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 08:46:44,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:44,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:46:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 08:46:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:46:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:44,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:46:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:44,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 08:46:45,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:46:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:45,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:46:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:45,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:46:45,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:46:45,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:46:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:46:45,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:46:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:45,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:46:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:45,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:46:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:45,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:46:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:45,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 08:46:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:45,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:45,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 08:46:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:45,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:46:45,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:46:45,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 08:46:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:46:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:46:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:46:45,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:46:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:46:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:46:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:46:45,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:46:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:46:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:46:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:46:45,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:46:45,206 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 08:46:45,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976446051] [2020-09-25 08:46:45,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:46:45,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:46:45,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554894545] [2020-09-25 08:46:45,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:46:45,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:46:45,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:46:45,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:46:45,209 INFO L87 Difference]: Start difference. First operand 365 states and 391 transitions. Second operand 10 states. [2020-09-25 08:46:46,497 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:46:46,814 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189