/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=0.1 --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/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:08:57,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:08:57,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:08:57,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:08:57,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:08:57,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:08:57,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:08:57,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:08:57,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:08:57,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:08:57,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:08:57,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:08:57,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:08:57,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:08:57,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:08:57,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:08:57,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:08:57,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:08:57,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:08:57,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:08:57,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:08:57,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:08:57,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:08:57,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:08:57,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:08:57,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:08:57,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:08:57,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:08:57,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:08:57,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:08:57,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:08:57,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:08:57,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:08:57,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:08:57,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:08:57,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:08:57,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:08:57,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:08:57,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:08:57,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:08:57,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:08:57,536 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 10:08:57,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:08:57,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:08:57,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:08:57,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:08:57,585 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:08:57,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:08:57,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:08:57,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:08:57,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:08:57,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:08:57,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:08:57,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:08:57,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:08:57,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:08:57,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:08:57,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:08:57,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:08:57,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:08:57,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:08:57,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:08:57,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:08:57,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:08:57,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:08:57,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:08:57,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:08:57,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:08:57,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:08:57,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:08:57,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:08:57,591 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:08:58,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:08:58,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:08:58,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:08:58,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:08:58,069 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:08:58,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-25 10:08:58,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f77c2be8f/2b08eb4d626c4b81ac68633ea6e987e1/FLAG2bdd69d68 [2020-09-25 10:08:58,797 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:08:58,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-25 10:08:58,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f77c2be8f/2b08eb4d626c4b81ac68633ea6e987e1/FLAG2bdd69d68 [2020-09-25 10:08:58,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f77c2be8f/2b08eb4d626c4b81ac68633ea6e987e1 [2020-09-25 10:08:59,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:08:59,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:08:59,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:08:59,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:08:59,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:08:59,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:08:58" (1/1) ... [2020-09-25 10:08:59,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59, skipping insertion in model container [2020-09-25 10:08:59,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:08:58" (1/1) ... [2020-09-25 10:08:59,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:08:59,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:08:59,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:08:59,625 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:08:59,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:08:59,861 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:08:59,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59 WrapperNode [2020-09-25 10:08:59,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:08:59,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:08:59,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:08:59,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:08:59,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (1/1) ... [2020-09-25 10:08:59,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:08:59,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:08:59,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:08:59,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:08:59,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (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 10:09:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:09:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:09:00,043 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 10:09:00,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:09:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 10:09:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:09:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:09:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:09:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:09:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:09:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:09:01,401 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:09:01,402 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:09:01,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:09:01 BoogieIcfgContainer [2020-09-25 10:09:01,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:09:01,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:09:01,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:09:01,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:09:01,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:08:58" (1/3) ... [2020-09-25 10:09:01,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a66a94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:09:01, skipping insertion in model container [2020-09-25 10:09:01,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:08:59" (2/3) ... [2020-09-25 10:09:01,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a66a94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:09:01, skipping insertion in model container [2020-09-25 10:09:01,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:09:01" (3/3) ... [2020-09-25 10:09:01,422 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-09-25 10:09:01,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:09:01,447 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:09:01,472 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:09:01,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:09:01,512 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:09:01,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:09:01,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:09:01,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:09:01,512 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:09:01,513 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:09:01,513 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:09:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 10:09:01,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-25 10:09:01,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:01,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:09:01,570 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:01,578 INFO L82 PathProgramCache]: Analyzing trace with hash 405983745, now seen corresponding path program 1 times [2020-09-25 10:09:01,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:01,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840094341] [2020-09-25 10:09:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:02,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:02,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:05,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:06,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:06,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 10:09:06,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:09:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 10:09:06,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:06,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:09:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:09:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 10:09:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:09:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:07,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:07,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:07,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:07,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 10:09:07,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:07,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:07,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:09:07,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:07,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:09:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:09:07,218 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 10:09:07,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840094341] [2020-09-25 10:09:07,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:09:07,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:09:07,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110264410] [2020-09-25 10:09:07,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:09:07,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:07,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:09:07,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:09:07,266 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 10:09:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:09,450 INFO L93 Difference]: Finished difference Result 1205 states and 1651 transitions. [2020-09-25 10:09:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:09:09,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-09-25 10:09:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:09,499 INFO L225 Difference]: With dead ends: 1205 [2020-09-25 10:09:09,499 INFO L226 Difference]: Without dead ends: 627 [2020-09-25 10:09:09,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:09:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-09-25 10:09:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 613. [2020-09-25 10:09:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-25 10:09:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 759 transitions. [2020-09-25 10:09:09,619 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 759 transitions. Word has length 118 [2020-09-25 10:09:09,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:09,622 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 759 transitions. [2020-09-25 10:09:09,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:09:09,622 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 759 transitions. [2020-09-25 10:09:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 10:09:09,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:09,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:09,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:09:09,638 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:09,642 INFO L82 PathProgramCache]: Analyzing trace with hash 171407996, now seen corresponding path program 1 times [2020-09-25 10:09:09,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:09,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299259653] [2020-09-25 10:09:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:09,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:10,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:10,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:10,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:12,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:14,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:14,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 10:09:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:09:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 10:09:14,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:14,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:09:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 10:09:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 10:09:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:14,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:09:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:14,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:09:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:09:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:14,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:09:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:15,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:15,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:15,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 10:09:15,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:09:15,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 10:09:15,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:15,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:09:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 10:09:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:09:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:09:15,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299259653] [2020-09-25 10:09:15,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:09:15,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:09:15,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422181180] [2020-09-25 10:09:15,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:09:15,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:15,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:09:15,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:09:15,513 INFO L87 Difference]: Start difference. First operand 613 states and 759 transitions. Second operand 11 states. [2020-09-25 10:09:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:18,791 INFO L93 Difference]: Finished difference Result 1379 states and 1828 transitions. [2020-09-25 10:09:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:09:18,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 152 [2020-09-25 10:09:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:18,801 INFO L225 Difference]: With dead ends: 1379 [2020-09-25 10:09:18,802 INFO L226 Difference]: Without dead ends: 528 [2020-09-25 10:09:18,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:09:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-25 10:09:18,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 514. [2020-09-25 10:09:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-09-25 10:09:18,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 577 transitions. [2020-09-25 10:09:18,843 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 577 transitions. Word has length 152 [2020-09-25 10:09:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:18,844 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 577 transitions. [2020-09-25 10:09:18,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:09:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 577 transitions. [2020-09-25 10:09:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 10:09:18,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:18,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:18,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:09:18,847 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:18,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1653572791, now seen corresponding path program 1 times [2020-09-25 10:09:18,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:18,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827087037] [2020-09-25 10:09:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:18,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:22,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:22,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 10:09:22,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:09:22,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3768 [2020-09-25 10:09:22,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:22,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:09:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 10:09:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 10:09:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:09:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:22,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:22,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:09:22,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:22,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:09:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:09:22,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:22,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:09:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:22,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:23,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:23,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:09:23,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:09:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 10:09:23,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:23,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:09:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:09:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:09:23,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827087037] [2020-09-25 10:09:23,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:09:23,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:09:23,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293223842] [2020-09-25 10:09:23,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:09:23,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:23,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:09:23,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:09:23,263 INFO L87 Difference]: Start difference. First operand 514 states and 577 transitions. Second operand 11 states. [2020-09-25 10:09:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:26,206 INFO L93 Difference]: Finished difference Result 924 states and 994 transitions. [2020-09-25 10:09:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:09:26,207 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-09-25 10:09:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:26,212 INFO L225 Difference]: With dead ends: 924 [2020-09-25 10:09:26,212 INFO L226 Difference]: Without dead ends: 674 [2020-09-25 10:09:26,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:09:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-09-25 10:09:26,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 508. [2020-09-25 10:09:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-09-25 10:09:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 570 transitions. [2020-09-25 10:09:26,257 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 570 transitions. Word has length 156 [2020-09-25 10:09:26,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:26,258 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 570 transitions. [2020-09-25 10:09:26,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:09:26,258 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 570 transitions. [2020-09-25 10:09:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 10:09:26,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:26,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:26,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:09:26,261 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:26,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:26,262 INFO L82 PathProgramCache]: Analyzing trace with hash 2072612792, now seen corresponding path program 1 times [2020-09-25 10:09:26,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:26,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943457929] [2020-09-25 10:09:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:26,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:26,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:29,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:29,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3439 [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:29,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:09:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:09:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 10:09:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:09:29,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:29,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:30,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:30,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:30,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 10:09:30,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:30,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:30,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:09:30,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:30,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:09:30,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:09:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:30,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:30,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:30,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 10:09:30,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:09:30,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 10:09:30,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:30,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:09:30,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:09:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 10:09:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:09:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:09:30,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943457929] [2020-09-25 10:09:30,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:09:30,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:09:30,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050431096] [2020-09-25 10:09:30,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:09:30,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:30,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:09:30,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:09:30,652 INFO L87 Difference]: Start difference. First operand 508 states and 570 transitions. Second operand 10 states. [2020-09-25 10:09:34,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:34,409 INFO L93 Difference]: Finished difference Result 1784 states and 2091 transitions. [2020-09-25 10:09:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 10:09:34,411 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-09-25 10:09:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:34,448 INFO L225 Difference]: With dead ends: 1784 [2020-09-25 10:09:34,449 INFO L226 Difference]: Without dead ends: 1298 [2020-09-25 10:09:34,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:09:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-09-25 10:09:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 826. [2020-09-25 10:09:34,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-09-25 10:09:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 904 transitions. [2020-09-25 10:09:34,489 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 904 transitions. Word has length 158 [2020-09-25 10:09:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:34,489 INFO L479 AbstractCegarLoop]: Abstraction has 826 states and 904 transitions. [2020-09-25 10:09:34,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:09:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 904 transitions. [2020-09-25 10:09:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 10:09:34,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:34,493 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:34,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:09:34,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:34,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash -192844367, now seen corresponding path program 1 times [2020-09-25 10:09:34,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:34,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647677] [2020-09-25 10:09:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:34,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:34,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:34,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:35,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:35,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:36,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:38,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:38,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:38,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 10:09:38,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:09:38,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4204 [2020-09-25 10:09:38,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:38,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:09:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 10:09:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 10:09:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:38,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:38,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:38,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:38,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:38,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:09:38,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:38,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:09:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:09:38,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:09:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:09:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:38,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:38,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:38,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 10:09:38,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:38,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:09:38,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:38,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:09:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:09:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:09:38,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 10:09:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:38,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:39,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:39,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 10:09:39,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:09:39,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 10:09:39,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:39,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:09:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:09:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 10:09:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:09:39,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647677] [2020-09-25 10:09:39,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:09:39,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:09:39,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778802918] [2020-09-25 10:09:39,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:09:39,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:39,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:09:39,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:09:39,155 INFO L87 Difference]: Start difference. First operand 826 states and 904 transitions. Second operand 7 states. [2020-09-25 10:09:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:41,227 INFO L93 Difference]: Finished difference Result 1845 states and 2097 transitions. [2020-09-25 10:09:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:09:41,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-25 10:09:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:41,233 INFO L225 Difference]: With dead ends: 1845 [2020-09-25 10:09:41,234 INFO L226 Difference]: Without dead ends: 1041 [2020-09-25 10:09:41,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:09:41,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-09-25 10:09:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 982. [2020-09-25 10:09:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2020-09-25 10:09:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1079 transitions. [2020-09-25 10:09:41,280 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1079 transitions. Word has length 175 [2020-09-25 10:09:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:41,282 INFO L479 AbstractCegarLoop]: Abstraction has 982 states and 1079 transitions. [2020-09-25 10:09:41,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:09:41,282 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1079 transitions. [2020-09-25 10:09:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 10:09:41,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:41,286 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:41,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:09:41,287 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash 6522394, now seen corresponding path program 1 times [2020-09-25 10:09:41,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:41,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120997656] [2020-09-25 10:09:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:41,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:41,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:41,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:42,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:44,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:44,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:46,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:46,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 10:09:46,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:09:46,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 10:09:46,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:09:46,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:09:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:46,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:46,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:46,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:09:46,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:09:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:09:46,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:09:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:46,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:09:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:09:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:09:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:46,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:09:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:09:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:09:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:09:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 10:09:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:46,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:09:46,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 10:09:46,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:09:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 10:09:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:09:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:09:46,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120997656] [2020-09-25 10:09:46,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:09:46,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:09:46,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718662454] [2020-09-25 10:09:46,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:09:46,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:09:46,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:09:46,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:09:46,649 INFO L87 Difference]: Start difference. First operand 982 states and 1079 transitions. Second operand 7 states. [2020-09-25 10:09:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:09:48,629 INFO L93 Difference]: Finished difference Result 2134 states and 2407 transitions. [2020-09-25 10:09:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 10:09:48,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-09-25 10:09:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:09:48,636 INFO L225 Difference]: With dead ends: 2134 [2020-09-25 10:09:48,637 INFO L226 Difference]: Without dead ends: 1174 [2020-09-25 10:09:48,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:09:48,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-09-25 10:09:48,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1144. [2020-09-25 10:09:48,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2020-09-25 10:09:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1262 transitions. [2020-09-25 10:09:48,674 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1262 transitions. Word has length 180 [2020-09-25 10:09:48,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:09:48,674 INFO L479 AbstractCegarLoop]: Abstraction has 1144 states and 1262 transitions. [2020-09-25 10:09:48,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:09:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1262 transitions. [2020-09-25 10:09:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 10:09:48,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:09:48,679 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:09:48,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:09:48,680 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:09:48,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:09:48,680 INFO L82 PathProgramCache]: Analyzing trace with hash 974912453, now seen corresponding path program 1 times [2020-09-25 10:09:48,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:09:48,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154240358] [2020-09-25 10:09:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:09:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:09:48,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:09:49,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking...