/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=NARROWEST --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_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:44:54,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:44:54,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:44:54,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:44:54,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:44:54,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:44:54,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:44:54,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:44:54,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:44:54,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:44:54,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:44:54,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:44:54,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:44:54,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:44:54,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:44:54,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:44:54,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:44:54,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:44:54,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:44:54,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:44:54,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:44:54,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:44:54,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:44:54,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:44:54,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:44:54,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:44:54,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:44:54,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:44:54,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:44:54,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:44:54,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:44:54,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:44:54,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:44:54,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:44:54,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:44:54,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:44:54,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:44:54,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:44:54,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:44:54,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:44:54,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:44:54,548 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 01:44:54,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:44:54,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:44:54,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:44:54,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:44:54,602 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:44:54,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:44:54,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:44:54,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:44:54,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:44:54,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:44:54,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:44:54,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:44:54,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:44:54,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:44:54,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:44:54,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:44:54,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:44:54,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:44:54,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:44:54,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:44:54,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:44:54,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:54,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:44:54,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:44:54,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:44:54,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:44:54,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:44:54,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:44:54,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:44:54,609 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:44:55,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:44:55,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:44:55,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:44:55,088 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:44:55,088 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:44:55,089 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 01:44:55,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a361e2d4/441af5f810bd41cfaaa1d9b4e5b8d581/FLAG22bbd6f54 [2020-09-25 01:44:55,851 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:44:55,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 01:44:55,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a361e2d4/441af5f810bd41cfaaa1d9b4e5b8d581/FLAG22bbd6f54 [2020-09-25 01:44:56,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a361e2d4/441af5f810bd41cfaaa1d9b4e5b8d581 [2020-09-25 01:44:56,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:44:56,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:44:56,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:56,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:44:56,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:44:56,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4137acd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56, skipping insertion in model container [2020-09-25 01:44:56,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:44:56,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:44:56,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:56,618 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:44:56,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:56,863 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:44:56,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56 WrapperNode [2020-09-25 01:44:56,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:56,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:44:56,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:44:56,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:44:56,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:57,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:44:57,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:44:57,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:44:57,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:44:57,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (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 01:44:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:44:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:44:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:44:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:44:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:44:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:44:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:44:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:44:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:44:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:44:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:44:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:44:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:44:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:44:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:44:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:44:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:44:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:44:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:44:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:44:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:44:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:44:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:44:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:44:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:44:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:44:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:44:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:44:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:44:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:44:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:44:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:44:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:44:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:44:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:44:58,257 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:44:58,257 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:44:58,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:58 BoogieIcfgContainer [2020-09-25 01:44:58,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:44:58,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:44:58,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:44:58,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:44:58,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:44:56" (1/3) ... [2020-09-25 01:44:58,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725984e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:58, skipping insertion in model container [2020-09-25 01:44:58,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56" (2/3) ... [2020-09-25 01:44:58,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725984e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:58, skipping insertion in model container [2020-09-25 01:44:58,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:58" (3/3) ... [2020-09-25 01:44:58,275 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-25 01:44:58,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:44:58,300 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:44:58,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:44:58,358 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:44:58,359 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:44:58,359 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:44:58,359 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:44:58,359 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:44:58,359 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:44:58,360 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:44:58,360 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:44:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 01:44:58,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:44:58,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:58,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:58,411 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:58,423 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-25 01:44:58,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:58,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284299124] [2020-09-25 01:44:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:59,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:03,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:03,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:45:03,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 01:45:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:45:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 01:45:04,380 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:04,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 01:45:04,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:04,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:04,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:04,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:04,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:04,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:04,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:04,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:04,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:04,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:45:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:04,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:04,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:04,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:04,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:04,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:04,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:04,695 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 01:45:04,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284299124] [2020-09-25 01:45:04,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:04,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:45:04,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294539676] [2020-09-25 01:45:04,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:45:04,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:04,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:45:04,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:04,731 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 01:45:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:06,370 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-09-25 01:45:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:45:06,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:45:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:06,394 INFO L225 Difference]: With dead ends: 498 [2020-09-25 01:45:06,394 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 01:45:06,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 01:45:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-09-25 01:45:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 01:45:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-09-25 01:45:06,519 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-09-25 01:45:06,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:06,520 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-09-25 01:45:06,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:45:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-09-25 01:45:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:45:06,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:06,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:06,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:45:06,526 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:06,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:06,527 INFO L82 PathProgramCache]: Analyzing trace with hash -631468838, now seen corresponding path program 1 times [2020-09-25 01:45:06,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:06,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846322088] [2020-09-25 01:45:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:11,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:11,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:45:11,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 01:45:11,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:11,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:45:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:11,958 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:11,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:12,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 01:45:12,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:12,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:12,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:12,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:12,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:12,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:12,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:12,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:12,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:12,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:12,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:12,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:12,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:12,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:45:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:12,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:12,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:12,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:12,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:12,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:12,208 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 01:45:12,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846322088] [2020-09-25 01:45:12,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:12,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:45:12,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86065110] [2020-09-25 01:45:12,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:45:12,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:12,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:45:12,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:45:12,214 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-09-25 01:45:12,851 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:13,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:13,828 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-09-25 01:45:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:45:13,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:45:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:13,833 INFO L225 Difference]: With dead ends: 411 [2020-09-25 01:45:13,833 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 01:45:13,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 01:45:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-09-25 01:45:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 01:45:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-09-25 01:45:13,879 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-09-25 01:45:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:13,880 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-09-25 01:45:13,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:45:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-09-25 01:45:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:45:13,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:13,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:13,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:45:13,883 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:13,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:13,884 INFO L82 PathProgramCache]: Analyzing trace with hash -604508154, now seen corresponding path program 1 times [2020-09-25 01:45:13,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:13,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876551420] [2020-09-25 01:45:13,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:14,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:14,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:18,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:18,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:45:18,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 01:45:18,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:45:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:19,259 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:19,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 01:45:19,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:19,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:19,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:19,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:19,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:19,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:19,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:45:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:19,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:19,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:45:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:45:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:19,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:45:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:19,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:19,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:19,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:19,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:19,545 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 01:45:19,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876551420] [2020-09-25 01:45:19,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:19,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:45:19,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059711423] [2020-09-25 01:45:19,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:45:19,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:19,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:45:19,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:19,549 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 5 states. [2020-09-25 01:45:20,199 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:21,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:21,344 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-09-25 01:45:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:45:21,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:45:21,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:21,348 INFO L225 Difference]: With dead ends: 457 [2020-09-25 01:45:21,349 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 01:45:21,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:45:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 01:45:21,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-09-25 01:45:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 01:45:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-09-25 01:45:21,399 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-09-25 01:45:21,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:21,400 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-09-25 01:45:21,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:45:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-09-25 01:45:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 01:45:21,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:21,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:21,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:45:21,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash 561125926, now seen corresponding path program 1 times [2020-09-25 01:45:21,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:21,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979566808] [2020-09-25 01:45:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:21,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:21,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:21,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:24,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:24,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 01:45:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 01:45:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 01:45:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 01:45:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:45:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,767 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:26,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 01:45:26,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:45:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:26,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:26,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:26,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:45:26,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:45:26,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:45:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:45:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:45:26,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:26,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:45:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:45:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:26,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:45:26,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:26,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:45:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:26,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:26,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:26,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:26,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:27,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:27,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:45:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:27,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:27,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:27,036 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 01:45:27,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979566808] [2020-09-25 01:45:27,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:27,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:45:27,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466521705] [2020-09-25 01:45:27,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:45:27,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:27,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:45:27,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:45:27,038 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 7 states. [2020-09-25 01:45:27,534 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:29,117 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:29,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:29,836 INFO L93 Difference]: Finished difference Result 637 states and 753 transitions. [2020-09-25 01:45:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:45:29,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 01:45:29,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:29,846 INFO L225 Difference]: With dead ends: 637 [2020-09-25 01:45:29,846 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 01:45:29,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:45:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 01:45:29,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 01:45:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 01:45:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 392 transitions. [2020-09-25 01:45:29,900 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 392 transitions. Word has length 169 [2020-09-25 01:45:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:29,901 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 392 transitions. [2020-09-25 01:45:29,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:45:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 392 transitions. [2020-09-25 01:45:29,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 01:45:29,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:29,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:29,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:45:29,904 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1803845393, now seen corresponding path program 1 times [2020-09-25 01:45:29,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:29,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179240064] [2020-09-25 01:45:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:34,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:34,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 01:45:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:45:34,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 01:45:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 01:45:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,312 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:35,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:35,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:35,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:35,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:35,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:45:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:35,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:35,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:45:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:45:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 01:45:35,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:35,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:45:35,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:45:35,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:35,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:45:35,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:45:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:35,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:45:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:35,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:35,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:35,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:35,730 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 01:45:35,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179240064] [2020-09-25 01:45:35,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:35,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:45:35,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245615260] [2020-09-25 01:45:35,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:45:35,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:35,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:45:35,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:45:35,732 INFO L87 Difference]: Start difference. First operand 365 states and 392 transitions. Second operand 10 states. [2020-09-25 01:45:36,332 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:37,889 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:38,172 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:38,516 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:45:38,837 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:39,162 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:39,525 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:45:39,824 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:40,127 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:41,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:41,327 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-25 01:45:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 01:45:41,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 01:45:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:41,334 INFO L225 Difference]: With dead ends: 495 [2020-09-25 01:45:41,335 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 01:45:41,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 01:45:41,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 01:45:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-09-25 01:45:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 01:45:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 391 transitions. [2020-09-25 01:45:41,395 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 391 transitions. Word has length 193 [2020-09-25 01:45:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:41,396 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 391 transitions. [2020-09-25 01:45:41,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:45:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 391 transitions. [2020-09-25 01:45:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 01:45:41,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:41,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:41,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:45:41,399 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -123541430, now seen corresponding path program 1 times [2020-09-25 01:45:41,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:41,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850043960] [2020-09-25 01:45:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking...