/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:34:31,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:34:31,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:34:31,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:34:31,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:34:31,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:34:31,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:34:31,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:34:31,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:34:31,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:34:31,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:34:31,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:34:31,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:34:31,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:34:31,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:34:31,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:34:31,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:34:31,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:34:31,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:34:31,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:34:31,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:34:31,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:34:31,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:34:31,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:34:31,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:34:31,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:34:31,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:34:31,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:34:31,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:34:31,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:34:31,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:34:31,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:34:31,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:34:31,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:34:31,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:34:31,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:34:31,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:34:31,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:34:31,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:34:31,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:34:31,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:34:31,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:34:31,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:34:31,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:34:31,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:34:31,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:34:31,661 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:34:31,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:34:31,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:34:31,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:34:31,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:34:31,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:34:31,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:34:31,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:34:31,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:34:31,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:34:31,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:34:31,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:34:31,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:34:31,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:34:31,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:34:31,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:34:31,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:34:31,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:34:31,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:34:31,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:34:31,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:34:31,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:34:31,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:34:31,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:34:31,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:34:31,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:34:32,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:34:32,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:34:32,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:34:32,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:34:32,128 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:34:32,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 13:34:32,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3edec917b/5cf88e6cd0ce4ba7a95b91847b71b876/FLAG904422776 [2020-09-25 13:34:32,883 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:34:32,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 13:34:32,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3edec917b/5cf88e6cd0ce4ba7a95b91847b71b876/FLAG904422776 [2020-09-25 13:34:33,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3edec917b/5cf88e6cd0ce4ba7a95b91847b71b876 [2020-09-25 13:34:33,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:34:33,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:34:33,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:34:33,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:34:33,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:34:33,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:33,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33, skipping insertion in model container [2020-09-25 13:34:33,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:33,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:34:33,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:34:33,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:34:33,807 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:34:33,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:34:33,937 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:34:33,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33 WrapperNode [2020-09-25 13:34:33,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:34:33,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:34:33,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:34:33,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:34:33,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:33,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:33,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:33,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:34,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:34,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:34,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... [2020-09-25 13:34:34,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:34:34,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:34:34,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:34:34,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:34:34,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:34:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:34:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:34:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 13:34:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:34:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 13:34:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:34:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:34:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:34:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:34:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:34:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:34:35,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:34:35,554 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:34:35,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:34:35 BoogieIcfgContainer [2020-09-25 13:34:35,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:34:35,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:34:35,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:34:35,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:34:35,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:34:33" (1/3) ... [2020-09-25 13:34:35,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60447c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:34:35, skipping insertion in model container [2020-09-25 13:34:35,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:34:33" (2/3) ... [2020-09-25 13:34:35,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60447c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:34:35, skipping insertion in model container [2020-09-25 13:34:35,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:34:35" (3/3) ... [2020-09-25 13:34:35,572 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-09-25 13:34:35,583 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:34:35,595 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:34:35,617 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:34:35,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:34:35,650 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:34:35,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:34:35,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:34:35,651 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:34:35,651 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:34:35,651 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:34:35,651 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:34:35,682 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 13:34:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 13:34:35,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:34:35,692 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] [2020-09-25 13:34:35,693 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:34:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:34:35,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1927363665, now seen corresponding path program 1 times [2020-09-25 13:34:35,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:34:35,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982380634] [2020-09-25 13:34:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:34:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:35,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:36,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 13:34:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:34:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 698 [2020-09-25 13:34:36,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:36,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:34:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:34:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 13:34:36,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:34:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:34:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:36,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:36,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:36,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:34:36,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:34:36,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:36,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:34:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:34:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:34:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:34:36,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982380634] [2020-09-25 13:34:36,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:34:36,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:34:36,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364033775] [2020-09-25 13:34:36,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:34:36,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:34:36,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:34:36,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:34:36,793 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 13:34:38,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:34:38,644 INFO L93 Difference]: Finished difference Result 1069 states and 1495 transitions. [2020-09-25 13:34:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:34:38,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 13:34:38,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:34:38,689 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 13:34:38,689 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 13:34:38,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:34:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 13:34:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2020-09-25 13:34:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 13:34:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 670 transitions. [2020-09-25 13:34:38,792 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 670 transitions. Word has length 44 [2020-09-25 13:34:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:34:38,793 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 670 transitions. [2020-09-25 13:34:38,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:34:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 670 transitions. [2020-09-25 13:34:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 13:34:38,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:34:38,800 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:34:38,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:34:38,801 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:34:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:34:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash -739682472, now seen corresponding path program 1 times [2020-09-25 13:34:38,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:34:38,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532988822] [2020-09-25 13:34:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:34:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:38,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:39,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:39,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:40,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:40,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 13:34:40,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:34:40,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1635 [2020-09-25 13:34:40,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:40,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:34:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:34:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 13:34:40,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:40,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:34:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:40,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:40,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:40,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:34:40,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:34:40,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:40,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:34:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:34:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:34:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:40,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:34:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:40,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:40,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 13:34:40,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:40,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 13:34:40,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:40,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:40,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:34:40,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:34:40,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:34:40,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:34:40,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532988822] [2020-09-25 13:34:40,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:34:40,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:34:40,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709346494] [2020-09-25 13:34:40,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:34:40,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:34:40,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:34:40,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:34:40,824 INFO L87 Difference]: Start difference. First operand 543 states and 670 transitions. Second operand 7 states. [2020-09-25 13:34:43,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:34:43,068 INFO L93 Difference]: Finished difference Result 1451 states and 1877 transitions. [2020-09-25 13:34:43,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:34:43,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-09-25 13:34:43,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:34:43,075 INFO L225 Difference]: With dead ends: 1451 [2020-09-25 13:34:43,075 INFO L226 Difference]: Without dead ends: 923 [2020-09-25 13:34:43,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:34:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-09-25 13:34:43,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 861. [2020-09-25 13:34:43,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-09-25 13:34:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1031 transitions. [2020-09-25 13:34:43,129 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1031 transitions. Word has length 124 [2020-09-25 13:34:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:34:43,130 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1031 transitions. [2020-09-25 13:34:43,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:34:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1031 transitions. [2020-09-25 13:34:43,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 13:34:43,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:34:43,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:34:43,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:34:43,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:34:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:34:43,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1991578147, now seen corresponding path program 1 times [2020-09-25 13:34:43,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:34:43,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094953064] [2020-09-25 13:34:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:34:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:43,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:43,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:43,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:45,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:45,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:47,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:47,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 13:34:47,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:34:47,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4294 [2020-09-25 13:34:47,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:47,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:34:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:34:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 13:34:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:47,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:34:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:47,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:47,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:47,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:34:47,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:47,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:34:47,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:47,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:47,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:34:47,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:34:47,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:34:47,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:47,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:34:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:47,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:47,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:34:47,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 13:34:47,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:47,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:34:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:34:47,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 13:34:47,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:34:47,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094953064] [2020-09-25 13:34:47,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:34:47,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:34:47,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520981519] [2020-09-25 13:34:47,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:34:47,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:34:47,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:34:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:34:47,889 INFO L87 Difference]: Start difference. First operand 861 states and 1031 transitions. Second operand 8 states. [2020-09-25 13:34:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:34:50,942 INFO L93 Difference]: Finished difference Result 2399 states and 2940 transitions. [2020-09-25 13:34:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:34:50,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-25 13:34:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:34:50,957 INFO L225 Difference]: With dead ends: 2399 [2020-09-25 13:34:50,957 INFO L226 Difference]: Without dead ends: 1553 [2020-09-25 13:34:50,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:34:50,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2020-09-25 13:34:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1508. [2020-09-25 13:34:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1508 states. [2020-09-25 13:34:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1773 transitions. [2020-09-25 13:34:51,025 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1773 transitions. Word has length 133 [2020-09-25 13:34:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:34:51,032 INFO L479 AbstractCegarLoop]: Abstraction has 1508 states and 1773 transitions. [2020-09-25 13:34:51,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:34:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1773 transitions. [2020-09-25 13:34:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 13:34:51,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:34:51,045 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:34:51,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:34:51,046 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:34:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:34:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash -718653912, now seen corresponding path program 1 times [2020-09-25 13:34:51,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:34:51,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341528811] [2020-09-25 13:34:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:34:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:51,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:51,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:51,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:52,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:54,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:54,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 13:34:54,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:34:54,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3738 [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-25 13:34:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:34:54,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:34:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:54,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:54,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:34:54,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:34:54,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:54,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:34:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:34:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:34:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:34:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:55,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:55,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:55,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 13:34:55,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:34:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 13:34:55,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:55,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:55,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:34:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:34:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:34:55,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:34:55,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:34:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:34:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:34:55,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:34:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 13:34:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:34:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 13:34:55,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:34:55,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:34:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:34:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:34:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:34:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:34:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:34:55,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341528811] [2020-09-25 13:34:55,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:34:55,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:34:55,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657539431] [2020-09-25 13:34:55,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:34:55,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:34:55,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:34:55,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:34:55,397 INFO L87 Difference]: Start difference. First operand 1508 states and 1773 transitions. Second operand 10 states. [2020-09-25 13:35:00,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:00,312 INFO L93 Difference]: Finished difference Result 4109 states and 5309 transitions. [2020-09-25 13:35:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 13:35:00,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-25 13:35:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:00,332 INFO L225 Difference]: With dead ends: 4109 [2020-09-25 13:35:00,332 INFO L226 Difference]: Without dead ends: 3253 [2020-09-25 13:35:00,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:35:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2020-09-25 13:35:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 2968. [2020-09-25 13:35:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2968 states. [2020-09-25 13:35:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 3762 transitions. [2020-09-25 13:35:00,437 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 3762 transitions. Word has length 203 [2020-09-25 13:35:00,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:00,438 INFO L479 AbstractCegarLoop]: Abstraction has 2968 states and 3762 transitions. [2020-09-25 13:35:00,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:35:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 3762 transitions. [2020-09-25 13:35:00,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 13:35:00,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:00,444 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:35:00,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:35:00,445 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:00,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:00,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1157417370, now seen corresponding path program 1 times [2020-09-25 13:35:00,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:00,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181142134] [2020-09-25 13:35:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:02,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:03,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 13:35:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:35:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:35:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:05,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:35:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:35:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-25 13:35:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:35:05,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:05,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:05,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:05,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:05,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:05,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:35:05,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:05,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:05,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:35:05,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:05,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:05,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:05,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:35:05,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 13:35:05,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:05,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:35:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 13:35:05,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 13:35:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:05,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:06,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:06,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 13:35:06,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 13:35:06,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:06,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:35:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 125 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:35:06,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181142134] [2020-09-25 13:35:06,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:35:06,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 13:35:06,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633739777] [2020-09-25 13:35:06,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:35:06,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:06,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:35:06,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:35:06,379 INFO L87 Difference]: Start difference. First operand 2968 states and 3762 transitions. Second operand 11 states. [2020-09-25 13:35:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:09,751 INFO L93 Difference]: Finished difference Result 5802 states and 7462 transitions. [2020-09-25 13:35:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:35:09,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 216 [2020-09-25 13:35:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:09,772 INFO L225 Difference]: With dead ends: 5802 [2020-09-25 13:35:09,772 INFO L226 Difference]: Without dead ends: 3014 [2020-09-25 13:35:09,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:35:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2020-09-25 13:35:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 2988. [2020-09-25 13:35:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2988 states. [2020-09-25 13:35:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 3765 transitions. [2020-09-25 13:35:09,863 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 3765 transitions. Word has length 216 [2020-09-25 13:35:09,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:09,864 INFO L479 AbstractCegarLoop]: Abstraction has 2988 states and 3765 transitions. [2020-09-25 13:35:09,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:35:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 3765 transitions. [2020-09-25 13:35:09,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 13:35:09,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:09,869 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:35:09,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:35:09,869 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:09,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:09,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1961292051, now seen corresponding path program 1 times [2020-09-25 13:35:09,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:09,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570680128] [2020-09-25 13:35:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:10,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:10,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:10,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:13,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:14,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 13:35:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:35:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 13:35:14,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:14,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:35:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:35:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 13:35:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:15,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:35:15,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:15,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:15,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:15,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:35:15,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:35:15,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 13:35:15,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:15,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:15,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:15,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:15,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 13:35:15,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:15,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 13:35:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:15,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 13:35:15,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:35:15,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570680128] [2020-09-25 13:35:15,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:35:15,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 13:35:15,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066449583] [2020-09-25 13:35:15,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:35:15,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:15,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:35:15,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:35:15,674 INFO L87 Difference]: Start difference. First operand 2988 states and 3765 transitions. Second operand 11 states. [2020-09-25 13:35:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:20,222 INFO L93 Difference]: Finished difference Result 8110 states and 10871 transitions. [2020-09-25 13:35:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 13:35:20,223 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2020-09-25 13:35:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:20,246 INFO L225 Difference]: With dead ends: 8110 [2020-09-25 13:35:20,247 INFO L226 Difference]: Without dead ends: 5140 [2020-09-25 13:35:20,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:35:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2020-09-25 13:35:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 4206. [2020-09-25 13:35:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4206 states. [2020-09-25 13:35:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4206 states to 4206 states and 5265 transitions. [2020-09-25 13:35:20,374 INFO L78 Accepts]: Start accepts. Automaton has 4206 states and 5265 transitions. Word has length 227 [2020-09-25 13:35:20,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:20,375 INFO L479 AbstractCegarLoop]: Abstraction has 4206 states and 5265 transitions. [2020-09-25 13:35:20,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:35:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4206 states and 5265 transitions. [2020-09-25 13:35:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 13:35:20,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:20,381 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:35:20,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:35:20,381 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:20,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:20,382 INFO L82 PathProgramCache]: Analyzing trace with hash -682886184, now seen corresponding path program 1 times [2020-09-25 13:35:20,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:20,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394232454] [2020-09-25 13:35:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:20,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:20,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:21,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:21,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:21,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...