/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:30:59,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:30:59,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:30:59,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:30:59,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:30:59,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:30:59,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:30:59,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:30:59,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:30:59,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:30:59,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:30:59,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:30:59,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:30:59,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:30:59,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:30:59,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:30:59,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:30:59,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:30:59,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:30:59,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:30:59,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:30:59,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:30:59,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:30:59,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:30:59,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:30:59,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:30:59,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:30:59,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:30:59,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:30:59,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:30:59,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:30:59,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:30:59,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:30:59,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:30:59,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:30:59,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:30:59,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:30:59,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:30:59,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:30:59,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:30:59,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:30:59,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:30:59,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:30:59,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:30:59,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:30:59,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:30:59,549 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:30:59,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:30:59,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:30:59,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:30:59,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:30:59,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:30:59,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:30:59,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:30:59,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:30:59,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:30:59,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:30:59,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:30:59,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:30:59,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:30:59,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:30:59,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:30:59,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:30:59,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:30:59,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:30:59,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:30:59,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:30:59,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:30:59,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:30:59,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:30:59,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:30:59,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:31:00,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:31:00,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:31:00,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:31:00,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:31:00,059 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:31:00,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-25 04:31:00,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f4366b9b/d47f182604554cbe9b9207c35ff963f1/FLAGc6619c2dd [2020-09-25 04:31:00,777 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:31:00,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-25 04:31:00,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f4366b9b/d47f182604554cbe9b9207c35ff963f1/FLAGc6619c2dd [2020-09-25 04:31:01,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f4366b9b/d47f182604554cbe9b9207c35ff963f1 [2020-09-25 04:31:01,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:31:01,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:31:01,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:31:01,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:31:01,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:31:01,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:01,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4164e930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01, skipping insertion in model container [2020-09-25 04:31:01,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:01,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:31:01,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:31:01,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:31:01,641 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:31:01,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:31:01,973 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:31:01,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01 WrapperNode [2020-09-25 04:31:01,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:31:01,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:31:01,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:31:01,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:31:01,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:01,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... [2020-09-25 04:31:02,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:31:02,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:31:02,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:31:02,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:31:02,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:31:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:31:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:31:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 04:31:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:31:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 04:31:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:31:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:31:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:31:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:31:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:31:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:31:03,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:31:03,639 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:31:03,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:31:03 BoogieIcfgContainer [2020-09-25 04:31:03,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:31:03,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:31:03,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:31:03,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:31:03,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:31:01" (1/3) ... [2020-09-25 04:31:03,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee0c8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:31:03, skipping insertion in model container [2020-09-25 04:31:03,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:31:01" (2/3) ... [2020-09-25 04:31:03,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee0c8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:31:03, skipping insertion in model container [2020-09-25 04:31:03,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:31:03" (3/3) ... [2020-09-25 04:31:03,659 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-09-25 04:31:03,672 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:31:03,683 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:31:03,704 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:31:03,736 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:31:03,736 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:31:03,736 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:31:03,736 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:31:03,737 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:31:03,737 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:31:03,737 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:31:03,737 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:31:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 04:31:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 04:31:03,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:03,783 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] [2020-09-25 04:31:03,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:03,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1905842433, now seen corresponding path program 1 times [2020-09-25 04:31:03,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:03,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755514325] [2020-09-25 04:31:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:04,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:05,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:05,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:31:05,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:31:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1372 [2020-09-25 04:31:05,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:05,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:05,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:31:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:31:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 04:31:05,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:31:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:05,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:05,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:05,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:05,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:31:05,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:05,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:31:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:31:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:31:05,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755514325] [2020-09-25 04:31:05,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:31:05,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:31:05,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267737301] [2020-09-25 04:31:05,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:31:05,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:05,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:31:05,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:31:05,655 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 5 states. [2020-09-25 04:31:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:09,018 INFO L93 Difference]: Finished difference Result 1358 states and 1918 transitions. [2020-09-25 04:31:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:31:09,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-09-25 04:31:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:09,049 INFO L225 Difference]: With dead ends: 1358 [2020-09-25 04:31:09,049 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 04:31:09,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:31:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 04:31:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 738. [2020-09-25 04:31:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-09-25 04:31:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 928 transitions. [2020-09-25 04:31:09,173 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 928 transitions. Word has length 69 [2020-09-25 04:31:09,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:09,173 INFO L479 AbstractCegarLoop]: Abstraction has 738 states and 928 transitions. [2020-09-25 04:31:09,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:31:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 928 transitions. [2020-09-25 04:31:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:31:09,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:09,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 04:31:09,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:31:09,184 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:09,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:09,185 INFO L82 PathProgramCache]: Analyzing trace with hash -966101360, now seen corresponding path program 1 times [2020-09-25 04:31:09,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:09,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035350798] [2020-09-25 04:31:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:09,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:12,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:12,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 04:31:12,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:31:12,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3419 [2020-09-25 04:31:12,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:12,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 04:31:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:31:12,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:31:12,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:12,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:12,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:31:12,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:12,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:31:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:31:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:31:12,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:31:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:12,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:12,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:12,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:31:12,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 04:31:12,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:12,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:31:12,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:31:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:31:13,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035350798] [2020-09-25 04:31:13,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:31:13,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:31:13,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45013752] [2020-09-25 04:31:13,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:31:13,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:13,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:31:13,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:31:13,104 INFO L87 Difference]: Start difference. First operand 738 states and 928 transitions. Second operand 5 states. [2020-09-25 04:31:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:14,819 INFO L93 Difference]: Finished difference Result 1762 states and 2316 transitions. [2020-09-25 04:31:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:31:14,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 04:31:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:14,836 INFO L225 Difference]: With dead ends: 1762 [2020-09-25 04:31:14,836 INFO L226 Difference]: Without dead ends: 1039 [2020-09-25 04:31:14,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:31:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-09-25 04:31:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2020-09-25 04:31:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-09-25 04:31:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1333 transitions. [2020-09-25 04:31:14,905 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1333 transitions. Word has length 148 [2020-09-25 04:31:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:14,906 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1333 transitions. [2020-09-25 04:31:14,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:31:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1333 transitions. [2020-09-25 04:31:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:31:14,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:14,916 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 04:31:14,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:31:14,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:14,917 INFO L82 PathProgramCache]: Analyzing trace with hash -379911190, now seen corresponding path program 1 times [2020-09-25 04:31:14,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:14,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856796333] [2020-09-25 04:31:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:14,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:15,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:16,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:16,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-25 04:31:16,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:31:16,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1618 [2020-09-25 04:31:16,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:16,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-09-25 04:31:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 04:31:16,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:16,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:16,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:16,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:16,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:16,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:31:16,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:16,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:31:16,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:31:16,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:31:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:16,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:16,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:16,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 04:31:16,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:16,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 04:31:16,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:16,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:31:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:31:16,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856796333] [2020-09-25 04:31:16,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:31:16,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:31:16,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814927351] [2020-09-25 04:31:16,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:31:16,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:16,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:31:16,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:31:16,849 INFO L87 Difference]: Start difference. First operand 1039 states and 1333 transitions. Second operand 5 states. [2020-09-25 04:31:18,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:18,690 INFO L93 Difference]: Finished difference Result 2538 states and 3407 transitions. [2020-09-25 04:31:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:31:18,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-25 04:31:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:18,706 INFO L225 Difference]: With dead ends: 2538 [2020-09-25 04:31:18,706 INFO L226 Difference]: Without dead ends: 1664 [2020-09-25 04:31:18,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:31:18,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-09-25 04:31:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1644. [2020-09-25 04:31:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-09-25 04:31:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2011 transitions. [2020-09-25 04:31:18,775 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2011 transitions. Word has length 160 [2020-09-25 04:31:18,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:18,776 INFO L479 AbstractCegarLoop]: Abstraction has 1644 states and 2011 transitions. [2020-09-25 04:31:18,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:31:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2011 transitions. [2020-09-25 04:31:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-25 04:31:18,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:18,788 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:31:18,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:31:18,788 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:18,789 INFO L82 PathProgramCache]: Analyzing trace with hash -2020435647, now seen corresponding path program 1 times [2020-09-25 04:31:18,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:18,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739363277] [2020-09-25 04:31:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:18,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:19,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:22,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:22,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:23,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:23,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 04:31:23,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:31:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 04:31:23,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:23,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 04:31:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 04:31:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:23,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:23,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:24,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:24,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:24,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:24,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:31:24,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:24,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:31:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:31:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:31:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:24,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:31:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 04:31:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:24,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:31:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:31:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:31:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:24,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:24,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:24,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:31:24,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 04:31:24,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:24,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:31:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 04:31:24,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:31:24,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739363277] [2020-09-25 04:31:24,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:31:24,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:31:24,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370633000] [2020-09-25 04:31:24,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:31:24,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:24,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:31:24,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:31:24,548 INFO L87 Difference]: Start difference. First operand 1644 states and 2011 transitions. Second operand 7 states. [2020-09-25 04:31:26,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:26,751 INFO L93 Difference]: Finished difference Result 3783 states and 4860 transitions. [2020-09-25 04:31:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:31:26,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-09-25 04:31:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:26,773 INFO L225 Difference]: With dead ends: 3783 [2020-09-25 04:31:26,773 INFO L226 Difference]: Without dead ends: 2304 [2020-09-25 04:31:26,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:31:26,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2020-09-25 04:31:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 1974. [2020-09-25 04:31:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2020-09-25 04:31:26,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2406 transitions. [2020-09-25 04:31:26,874 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2406 transitions. Word has length 237 [2020-09-25 04:31:26,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:26,874 INFO L479 AbstractCegarLoop]: Abstraction has 1974 states and 2406 transitions. [2020-09-25 04:31:26,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:31:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2406 transitions. [2020-09-25 04:31:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-25 04:31:26,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:26,881 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:31:26,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:31:26,881 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:26,882 INFO L82 PathProgramCache]: Analyzing trace with hash -567147515, now seen corresponding path program 1 times [2020-09-25 04:31:26,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:26,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746347056] [2020-09-25 04:31:26,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:27,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:31,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:31,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 04:31:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:31:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:31:32,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:32,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:32,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:32,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:32,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:31:32,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:32,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:31:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:31:32,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:31:32,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:31:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:32,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:32,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:31:32,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 04:31:32,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:32,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 04:31:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:32,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 04:31:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:32,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:32,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 04:31:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 04:31:32,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:32,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:31:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:31:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:31:32,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746347056] [2020-09-25 04:31:32,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:31:32,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:31:32,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150485926] [2020-09-25 04:31:32,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:31:32,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:32,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:31:32,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:31:32,630 INFO L87 Difference]: Start difference. First operand 1974 states and 2406 transitions. Second operand 7 states. [2020-09-25 04:31:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:35,075 INFO L93 Difference]: Finished difference Result 4425 states and 5685 transitions. [2020-09-25 04:31:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:31:35,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-09-25 04:31:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:35,092 INFO L225 Difference]: With dead ends: 4425 [2020-09-25 04:31:35,092 INFO L226 Difference]: Without dead ends: 2616 [2020-09-25 04:31:35,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 04:31:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2020-09-25 04:31:35,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2600. [2020-09-25 04:31:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-09-25 04:31:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3248 transitions. [2020-09-25 04:31:35,184 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3248 transitions. Word has length 250 [2020-09-25 04:31:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:35,185 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3248 transitions. [2020-09-25 04:31:35,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:31:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3248 transitions. [2020-09-25 04:31:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-09-25 04:31:35,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:35,194 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:31:35,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:31:35,194 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:35,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:35,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1521249918, now seen corresponding path program 1 times [2020-09-25 04:31:35,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:35,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145835393] [2020-09-25 04:31:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:35,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:36,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:39,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:40,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:40,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-25 04:31:40,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:31:40,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 04:31:40,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:40,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 04:31:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-25 04:31:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:31:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:40,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:40,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:31:40,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:31:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:40,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:31:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:31:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:40,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:31:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:40,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:40,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:40,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:31:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 04:31:40,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:40,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:31:40,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:31:40,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:31:40,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:31:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 04:31:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:40,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:31:40,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 04:31:40,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:31:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 04:31:40,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:31:40,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:31:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:31:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:31:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 04:31:40,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:31:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:31:41,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145835393] [2020-09-25 04:31:41,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:31:41,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:31:41,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478670040] [2020-09-25 04:31:41,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:31:41,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:31:41,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:31:41,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:31:41,053 INFO L87 Difference]: Start difference. First operand 2600 states and 3248 transitions. Second operand 7 states. [2020-09-25 04:31:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:31:43,627 INFO L93 Difference]: Finished difference Result 5889 states and 7481 transitions. [2020-09-25 04:31:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:31:43,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 293 [2020-09-25 04:31:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:31:43,641 INFO L225 Difference]: With dead ends: 5889 [2020-09-25 04:31:43,641 INFO L226 Difference]: Without dead ends: 2318 [2020-09-25 04:31:43,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:31:43,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-09-25 04:31:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2230. [2020-09-25 04:31:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2230 states. [2020-09-25 04:31:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2562 transitions. [2020-09-25 04:31:43,719 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2562 transitions. Word has length 293 [2020-09-25 04:31:43,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:31:43,720 INFO L479 AbstractCegarLoop]: Abstraction has 2230 states and 2562 transitions. [2020-09-25 04:31:43,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:31:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2562 transitions. [2020-09-25 04:31:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-09-25 04:31:43,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:31:43,729 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, 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, 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] [2020-09-25 04:31:43,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:31:43,730 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:31:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:31:43,730 INFO L82 PathProgramCache]: Analyzing trace with hash -381976138, now seen corresponding path program 1 times [2020-09-25 04:31:43,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:31:43,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902274960] [2020-09-25 04:31:43,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:31:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:31:43,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:44,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:31:44,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking...