/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:15:59,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:15:59,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:16:00,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:16:00,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:16:00,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:16:00,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:16:00,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:16:00,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:16:00,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:16:00,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:16:00,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:16:00,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:16:00,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:16:00,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:16:00,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:16:00,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:16:00,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:16:00,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:16:00,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:16:00,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:16:00,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:16:00,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:16:00,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:16:00,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:16:00,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:16:00,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:16:00,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:16:00,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:16:00,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:16:00,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:16:00,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:16:00,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:16:00,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:16:00,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:16:00,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:16:00,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:16:00,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:16:00,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:16:00,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:16:00,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:16:00,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:16:00,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:16:00,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:16:00,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:16:00,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:16:00,074 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:16:00,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:16:00,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:16:00,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:16:00,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:16:00,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:16:00,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:16:00,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:16:00,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:16:00,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:16:00,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:16:00,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:16:00,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:16:00,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:16:00,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:16:00,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:16:00,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:16:00,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:16:00,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:16:00,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:16:00,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:16:00,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:16:00,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:16:00,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:16:00,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:16:00,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:16:00,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:16:00,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:16:00,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:16:00,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:16:00,576 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:16:00,577 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c [2020-09-25 14:16:00,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee442b16f/25dff1fe571e4700be59ee133856c894/FLAGba695977b [2020-09-25 14:16:01,243 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:16:01,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c [2020-09-25 14:16:01,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee442b16f/25dff1fe571e4700be59ee133856c894/FLAGba695977b [2020-09-25 14:16:01,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee442b16f/25dff1fe571e4700be59ee133856c894 [2020-09-25 14:16:01,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:16:01,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:16:01,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:16:01,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:16:01,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:16:01,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:16:01" (1/1) ... [2020-09-25 14:16:01,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:01, skipping insertion in model container [2020-09-25 14:16:01,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:16:01" (1/1) ... [2020-09-25 14:16:01,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:16:01,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:16:01,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:16:01,995 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:16:02,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:16:02,249 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:16:02,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02 WrapperNode [2020-09-25 14:16:02,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:16:02,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:16:02,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:16:02,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:16:02,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... [2020-09-25 14:16:02,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:16:02,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:16:02,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:16:02,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:16:02,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:16:02,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:16:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:16:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:16:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:16:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:16:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:16:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:16:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:16:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:16:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:16:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:16:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:16:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:16:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:16:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:16:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:16:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:16:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:16:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:16:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:16:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:16:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:16:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:16:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:16:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:16:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:16:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:16:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:16:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:16:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:16:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:16:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:16:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:16:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:16:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:16:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:16:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:16:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:16:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:16:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:16:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:16:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:16:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:16:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:16:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:16:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:16:03,645 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:16:03,646 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:16:03,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:16:03 BoogieIcfgContainer [2020-09-25 14:16:03,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:16:03,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:16:03,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:16:03,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:16:03,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:16:01" (1/3) ... [2020-09-25 14:16:03,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4823cd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:16:03, skipping insertion in model container [2020-09-25 14:16:03,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:16:02" (2/3) ... [2020-09-25 14:16:03,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4823cd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:16:03, skipping insertion in model container [2020-09-25 14:16:03,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:16:03" (3/3) ... [2020-09-25 14:16:03,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2020-09-25 14:16:03,676 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:16:03,687 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:16:03,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:16:03,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:16:03,744 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:16:03,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:16:03,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:16:03,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:16:03,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:16:03,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:16:03,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:16:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 14:16:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:16:03,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:03,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:03,794 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:03,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:03,802 INFO L82 PathProgramCache]: Analyzing trace with hash -814474831, now seen corresponding path program 1 times [2020-09-25 14:16:03,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:03,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742178878] [2020-09-25 14:16:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:04,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:06,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:07,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:09,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:09,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:16:09,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:16:09,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 14:16:09,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:09,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:16:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 14:16:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:16:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 14:16:09,733 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:10,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 14:16:10,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:16:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:10,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:16:10,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:10,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:10,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:10,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:16:10,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:10,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:10,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:10,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:10,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:16:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:16:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:10,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:10,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:16:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:10,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:10,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:10,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:10,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:10,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:10,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:16:10,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742178878] [2020-09-25 14:16:10,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:10,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:16:10,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093887953] [2020-09-25 14:16:10,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:16:10,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:10,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:16:10,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:16:10,396 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 5 states. [2020-09-25 14:16:11,005 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:12,691 INFO L93 Difference]: Finished difference Result 586 states and 709 transitions. [2020-09-25 14:16:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:16:12,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:16:12,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:12,721 INFO L225 Difference]: With dead ends: 586 [2020-09-25 14:16:12,722 INFO L226 Difference]: Without dead ends: 420 [2020-09-25 14:16:12,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:16:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-25 14:16:12,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 357. [2020-09-25 14:16:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-25 14:16:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 398 transitions. [2020-09-25 14:16:12,869 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 398 transitions. Word has length 148 [2020-09-25 14:16:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:12,870 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 398 transitions. [2020-09-25 14:16:12,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:16:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 398 transitions. [2020-09-25 14:16:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 14:16:12,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:12,876 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] [2020-09-25 14:16:12,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:16:12,876 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:12,877 INFO L82 PathProgramCache]: Analyzing trace with hash -38560683, now seen corresponding path program 1 times [2020-09-25 14:16:12,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:12,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926820502] [2020-09-25 14:16:12,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:14,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:15,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:17,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 14:16:18,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:16:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-09-25 14:16:18,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:16:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 14:16:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:16:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,421 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:18,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:18,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 14:16:18,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:18,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:18,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:18,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:18,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:18,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:18,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:16:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:16:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:18,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:16:18,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:16:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:16:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:18,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:18,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:16:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:18,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:18,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:16:18,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926820502] [2020-09-25 14:16:18,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:18,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:16:18,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41634725] [2020-09-25 14:16:18,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:16:18,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:18,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:16:18,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:16:18,725 INFO L87 Difference]: Start difference. First operand 357 states and 398 transitions. Second operand 6 states. [2020-09-25 14:16:19,233 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:21,556 INFO L93 Difference]: Finished difference Result 934 states and 1259 transitions. [2020-09-25 14:16:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:16:21,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 14:16:21,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:21,579 INFO L225 Difference]: With dead ends: 934 [2020-09-25 14:16:21,579 INFO L226 Difference]: Without dead ends: 931 [2020-09-25 14:16:21,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:16:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-09-25 14:16:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 602. [2020-09-25 14:16:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-09-25 14:16:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 695 transitions. [2020-09-25 14:16:21,711 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 695 transitions. Word has length 157 [2020-09-25 14:16:21,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:21,712 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 695 transitions. [2020-09-25 14:16:21,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:16:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 695 transitions. [2020-09-25 14:16:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 14:16:21,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:21,720 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:21,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:16:21,720 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:21,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1020697170, now seen corresponding path program 1 times [2020-09-25 14:16:21,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:21,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400015923] [2020-09-25 14:16:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:21,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:21,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:22,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:22,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:26,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:26,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 14:16:26,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:16:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-25 14:16:26,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:26,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 14:16:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:16:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,112 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:27,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 14:16:27,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:27,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:27,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:27,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:27,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:27,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:27,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:27,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:27,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:27,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:16:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:16:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:16:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 14:16:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:16:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:27,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:27,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:16:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:16:27,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:16:27,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:27,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:27,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:16:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:27,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 14:16:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:16:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:27,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:27,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:16:27,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 14:16:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 14:16:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:27,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:27,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:27,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:27,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:27,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:27,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 14:16:27,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400015923] [2020-09-25 14:16:27,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:27,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:16:27,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248049065] [2020-09-25 14:16:27,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:16:27,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:27,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:16:27,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:16:27,705 INFO L87 Difference]: Start difference. First operand 602 states and 695 transitions. Second operand 7 states. [2020-09-25 14:16:28,297 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:29,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:29,523 INFO L93 Difference]: Finished difference Result 1107 states and 1361 transitions. [2020-09-25 14:16:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:16:29,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-25 14:16:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:29,529 INFO L225 Difference]: With dead ends: 1107 [2020-09-25 14:16:29,529 INFO L226 Difference]: Without dead ends: 758 [2020-09-25 14:16:29,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:16:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-25 14:16:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 562. [2020-09-25 14:16:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-09-25 14:16:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 635 transitions. [2020-09-25 14:16:29,630 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 635 transitions. Word has length 211 [2020-09-25 14:16:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:29,632 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 635 transitions. [2020-09-25 14:16:29,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:16:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 635 transitions. [2020-09-25 14:16:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 14:16:29,638 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:29,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:29,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:16:29,639 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:29,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1776952738, now seen corresponding path program 1 times [2020-09-25 14:16:29,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:29,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108793257] [2020-09-25 14:16:29,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:29,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:30,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:34,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:34,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 14:16:34,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:16:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:16:34,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:34,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:16:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:16:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 14:16:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,013 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:35,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 14:16:35,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:16:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:35,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:35,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:35,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:16:35,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:35,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:35,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:35,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:16:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:16:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:16:35,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:35,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:35,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:16:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:16:35,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:16:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 14:16:35,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:16:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:16:35,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:16:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:16:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 14:16:35,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:16:35,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:16:35,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:35,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:35,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:16:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:35,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:16:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:35,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:35,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:35,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:35,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:35,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 14:16:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:35,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:35,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:35,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:35,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 14:16:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:35,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:35,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:35,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:35,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:35,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:35,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:35,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 14:16:36,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108793257] [2020-09-25 14:16:36,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:16:36,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:16:36,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961922698] [2020-09-25 14:16:36,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:16:36,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:36,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:16:36,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:16:36,012 INFO L87 Difference]: Start difference. First operand 562 states and 635 transitions. Second operand 12 states. [2020-09-25 14:16:36,583 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:37,597 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:16:38,756 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:16:39,070 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:16:39,437 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:16:39,803 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:16:40,115 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:16:40,444 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 14:16:40,750 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:16:41,096 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:16:41,499 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 14:16:41,833 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:16:43,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:43,091 INFO L93 Difference]: Finished difference Result 1588 states and 2007 transitions. [2020-09-25 14:16:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-25 14:16:43,094 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 213 [2020-09-25 14:16:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:43,100 INFO L225 Difference]: With dead ends: 1588 [2020-09-25 14:16:43,101 INFO L226 Difference]: Without dead ends: 1141 [2020-09-25 14:16:43,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 14:16:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-09-25 14:16:43,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 735. [2020-09-25 14:16:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 14:16:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 828 transitions. [2020-09-25 14:16:43,210 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 828 transitions. Word has length 213 [2020-09-25 14:16:43,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:43,210 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 828 transitions. [2020-09-25 14:16:43,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:16:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 828 transitions. [2020-09-25 14:16:43,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 14:16:43,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:43,215 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:43,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:16:43,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:43,216 INFO L82 PathProgramCache]: Analyzing trace with hash -887449225, now seen corresponding path program 1 times [2020-09-25 14:16:43,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:43,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797948086] [2020-09-25 14:16:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:43,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:43,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking...