/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/Problem10_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:11:58,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:11:58,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:11:58,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:11:58,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:11:58,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:11:58,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:11:58,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:11:58,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:11:58,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:11:58,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:11:58,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:11:58,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:11:58,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:11:58,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:11:58,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:11:58,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:11:58,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:11:58,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:11:58,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:11:58,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:11:58,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:11:58,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:11:58,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:11:58,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:11:58,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:11:58,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:11:58,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:11:58,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:11:58,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:11:58,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:11:58,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:11:58,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:11:58,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:11:58,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:11:58,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:11:58,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:11:58,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:11:58,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:11:58,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:11:58,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:11:58,538 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 10:11:58,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:11:58,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:11:58,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:11:58,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:11:58,586 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:11:58,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:11:58,586 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:11:58,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:11:58,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:11:58,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:11:58,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:11:58,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:11:58,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:11:58,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:11:58,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:11:58,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:11:58,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:11:58,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:11:58,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:11:58,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:11:58,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:11:58,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:11:58,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:11:58,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:11:58,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:11:58,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:11:58,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:11:58,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:11:58,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:11:58,592 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 10:11:59,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:11:59,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:11:59,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:11:59,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:11:59,060 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:11:59,062 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 10:11:59,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d552842e2/74c2c0163a4845c19faa9f3905c14138/FLAG50064e65f [2020-09-25 10:11:59,764 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:11:59,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 10:11:59,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d552842e2/74c2c0163a4845c19faa9f3905c14138/FLAG50064e65f [2020-09-25 10:11:59,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d552842e2/74c2c0163a4845c19faa9f3905c14138 [2020-09-25 10:11:59,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:11:59,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:11:59,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:11:59,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:11:59,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:11:59,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:11:59" (1/1) ... [2020-09-25 10:11:59,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:11:59, skipping insertion in model container [2020-09-25 10:11:59,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:11:59" (1/1) ... [2020-09-25 10:12:00,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:12:00,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:12:00,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:12:00,656 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:12:00,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:12:00,831 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:12:00,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00 WrapperNode [2020-09-25 10:12:00,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:12:00,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:12:00,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:12:00,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:12:00,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (1/1) ... [2020-09-25 10:12:00,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:12:00,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:12:00,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:12:00,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:12:00,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (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 10:12:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:12:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:12:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 10:12:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:12:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 10:12:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:12:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:12:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:12:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:12:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:12:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:12:02,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:12:02,399 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:12:02,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:12:02 BoogieIcfgContainer [2020-09-25 10:12:02,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:12:02,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:12:02,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:12:02,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:12:02,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:11:59" (1/3) ... [2020-09-25 10:12:02,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:12:02, skipping insertion in model container [2020-09-25 10:12:02,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:12:00" (2/3) ... [2020-09-25 10:12:02,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:12:02, skipping insertion in model container [2020-09-25 10:12:02,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:12:02" (3/3) ... [2020-09-25 10:12:02,425 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-09-25 10:12:02,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:12:02,456 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:12:02,485 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:12:02,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:12:02,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:12:02,537 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:12:02,537 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:12:02,537 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:12:02,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:12:02,538 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:12:02,538 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:12:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 10:12:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 10:12:02,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:02,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:02,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:02,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:02,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1927363665, now seen corresponding path program 1 times [2020-09-25 10:12:02,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:02,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791069953] [2020-09-25 10:12:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:02,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:02,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:03,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:03,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 10:12:03,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-09-25 10:12:03,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:03,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:12:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 10:12:03,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 10:12:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:12:03,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:03,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:12:03,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:03,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:12:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:12:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:03,697 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 10:12:03,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791069953] [2020-09-25 10:12:03,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:12:03,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:12:03,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805792504] [2020-09-25 10:12:03,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:12:03,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:03,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:12:03,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:12:03,730 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 10:12:05,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:05,549 INFO L93 Difference]: Finished difference Result 1069 states and 1495 transitions. [2020-09-25 10:12:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:12:05,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 10:12:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:05,580 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 10:12:05,580 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 10:12:05,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:12:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 10:12:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2020-09-25 10:12:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 10:12:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 670 transitions. [2020-09-25 10:12:05,688 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 670 transitions. Word has length 44 [2020-09-25 10:12:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:05,689 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 670 transitions. [2020-09-25 10:12:05,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:12:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 670 transitions. [2020-09-25 10:12:05,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 10:12:05,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:05,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:05,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:12:05,697 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:05,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:05,697 INFO L82 PathProgramCache]: Analyzing trace with hash -739682472, now seen corresponding path program 1 times [2020-09-25 10:12:05,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:05,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784626564] [2020-09-25 10:12:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:05,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:06,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:06,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:07,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:07,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 10:12:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:12:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1684 [2020-09-25 10:12:07,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:07,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:12:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:12:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 10:12:07,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:07,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:07,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:07,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:07,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:12:07,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:07,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:12:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:12:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:07,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:12:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:07,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:07,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 10:12:07,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 10:12:07,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:07,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:12:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:12:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:12:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 10:12:07,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784626564] [2020-09-25 10:12:07,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:12:07,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 10:12:07,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196995103] [2020-09-25 10:12:07,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:12:07,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:07,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:12:07,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:12:07,791 INFO L87 Difference]: Start difference. First operand 543 states and 670 transitions. Second operand 6 states. [2020-09-25 10:12:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:09,759 INFO L93 Difference]: Finished difference Result 1437 states and 1858 transitions. [2020-09-25 10:12:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:12:09,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-09-25 10:12:09,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:09,767 INFO L225 Difference]: With dead ends: 1437 [2020-09-25 10:12:09,767 INFO L226 Difference]: Without dead ends: 909 [2020-09-25 10:12:09,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:12:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-09-25 10:12:09,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 859. [2020-09-25 10:12:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-09-25 10:12:09,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1029 transitions. [2020-09-25 10:12:09,817 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1029 transitions. Word has length 124 [2020-09-25 10:12:09,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:09,817 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1029 transitions. [2020-09-25 10:12:09,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:12:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1029 transitions. [2020-09-25 10:12:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 10:12:09,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:09,824 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:09,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:12:09,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:09,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1991578147, now seen corresponding path program 1 times [2020-09-25 10:12:09,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:09,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071879983] [2020-09-25 10:12:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:10,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:10,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:12,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 10:12:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:12:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4716 [2020-09-25 10:12:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:14,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:12:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:12:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 10:12:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:14,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:14,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:12:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:14,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:12:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:12:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:14,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:12:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:14,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:14,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:14,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:12:14,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 10:12:14,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:14,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:12:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:12:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 10:12:14,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:12:15,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071879983] [2020-09-25 10:12:15,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:12:15,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:12:15,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518437465] [2020-09-25 10:12:15,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:12:15,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:15,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:12:15,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:12:15,026 INFO L87 Difference]: Start difference. First operand 859 states and 1029 transitions. Second operand 8 states. [2020-09-25 10:12:20,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:20,321 INFO L93 Difference]: Finished difference Result 2395 states and 2934 transitions. [2020-09-25 10:12:20,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:12:20,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-25 10:12:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:20,335 INFO L225 Difference]: With dead ends: 2395 [2020-09-25 10:12:20,335 INFO L226 Difference]: Without dead ends: 1551 [2020-09-25 10:12:20,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:12:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-09-25 10:12:20,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1506. [2020-09-25 10:12:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-09-25 10:12:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1769 transitions. [2020-09-25 10:12:20,415 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1769 transitions. Word has length 133 [2020-09-25 10:12:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:20,416 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 1769 transitions. [2020-09-25 10:12:20,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:12:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1769 transitions. [2020-09-25 10:12:20,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 10:12:20,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:20,436 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:20,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:12:20,437 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash -718653912, now seen corresponding path program 1 times [2020-09-25 10:12:20,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:20,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306109144] [2020-09-25 10:12:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:20,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:20,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:21,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:21,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:22,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:23,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:24,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:24,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 10:12:24,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:12:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3886 [2020-09-25 10:12:24,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:24,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:12:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:12:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-09-25 10:12:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:24,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:24,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:12:24,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:24,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:12:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:12:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:12:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:24,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:24,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:24,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 10:12:24,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:24,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 10:12:24,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:24,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:12:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:12:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:12:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:24,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:12:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:24,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:24,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:24,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:24,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 10:12:24,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 10:12:24,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:24,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:12:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:12:24,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:12:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 14 proven. 44 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-25 10:12:24,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306109144] [2020-09-25 10:12:24,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:12:24,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:12:24,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975555391] [2020-09-25 10:12:24,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:12:24,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:24,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:12:24,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:12:24,944 INFO L87 Difference]: Start difference. First operand 1506 states and 1769 transitions. Second operand 9 states. [2020-09-25 10:12:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:29,149 INFO L93 Difference]: Finished difference Result 3448 states and 4349 transitions. [2020-09-25 10:12:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:12:29,150 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2020-09-25 10:12:29,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:29,167 INFO L225 Difference]: With dead ends: 3448 [2020-09-25 10:12:29,167 INFO L226 Difference]: Without dead ends: 2594 [2020-09-25 10:12:29,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:12:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2020-09-25 10:12:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 2505. [2020-09-25 10:12:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2020-09-25 10:12:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3051 transitions. [2020-09-25 10:12:29,255 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3051 transitions. Word has length 203 [2020-09-25 10:12:29,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:29,257 INFO L479 AbstractCegarLoop]: Abstraction has 2505 states and 3051 transitions. [2020-09-25 10:12:29,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:12:29,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3051 transitions. [2020-09-25 10:12:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 10:12:29,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:29,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:29,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:12:29,263 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:29,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1157417370, now seen corresponding path program 1 times [2020-09-25 10:12:29,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:29,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570572188] [2020-09-25 10:12:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:29,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:29,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:31,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:31,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:32,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:32,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:34,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:34,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 10:12:34,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:12:34,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 10:12:34,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:34,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:34,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:12:34,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:12:34,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 10:12:34,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:34,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:34,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:34,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:34,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:34,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:12:34,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:34,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:12:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:12:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:34,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:12:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:34,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:34,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:34,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:12:34,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 10:12:34,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:34,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:12:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:12:34,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:34,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 10:12:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:34,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:34,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:35,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:35,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:12:35,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:35,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 10:12:35,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:35,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:12:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:12:35,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:12:35,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:12:35,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570572188] [2020-09-25 10:12:35,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:12:35,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:12:35,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739171475] [2020-09-25 10:12:35,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:12:35,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:35,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:12:35,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:12:35,237 INFO L87 Difference]: Start difference. First operand 2505 states and 3051 transitions. Second operand 10 states. [2020-09-25 10:12:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:38,482 INFO L93 Difference]: Finished difference Result 6176 states and 8042 transitions. [2020-09-25 10:12:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 10:12:38,483 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2020-09-25 10:12:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:38,503 INFO L225 Difference]: With dead ends: 6176 [2020-09-25 10:12:38,503 INFO L226 Difference]: Without dead ends: 3539 [2020-09-25 10:12:38,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:12:38,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2020-09-25 10:12:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3427. [2020-09-25 10:12:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2020-09-25 10:12:38,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4123 transitions. [2020-09-25 10:12:38,605 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4123 transitions. Word has length 216 [2020-09-25 10:12:38,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:38,605 INFO L479 AbstractCegarLoop]: Abstraction has 3427 states and 4123 transitions. [2020-09-25 10:12:38,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:12:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4123 transitions. [2020-09-25 10:12:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 10:12:38,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:38,612 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:12:38,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:12:38,612 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:38,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:38,613 INFO L82 PathProgramCache]: Analyzing trace with hash -682886184, now seen corresponding path program 1 times [2020-09-25 10:12:38,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:38,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032323955] [2020-09-25 10:12:38,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:39,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:43,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 10:12:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:12:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4574 [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-09-25 10:12:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:12:43,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:12:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:43,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:12:43,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:12:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:12:43,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:43,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:12:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:12:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:43,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:12:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:43,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:43,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 10:12:43,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 10:12:43,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:43,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:12:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 10:12:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:12:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:12:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:43,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:12:43,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 10:12:43,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:12:43,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 10:12:43,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:12:43,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:12:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:12:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:12:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 10:12:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:12:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-09-25 10:12:44,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032323955] [2020-09-25 10:12:44,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:12:44,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:12:44,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934031800] [2020-09-25 10:12:44,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:12:44,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:12:44,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:12:44,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:12:44,147 INFO L87 Difference]: Start difference. First operand 3427 states and 4123 transitions. Second operand 10 states. [2020-09-25 10:12:48,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:12:48,180 INFO L93 Difference]: Finished difference Result 7354 states and 9171 transitions. [2020-09-25 10:12:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:12:48,181 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 252 [2020-09-25 10:12:48,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:12:48,200 INFO L225 Difference]: With dead ends: 7354 [2020-09-25 10:12:48,200 INFO L226 Difference]: Without dead ends: 4539 [2020-09-25 10:12:48,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:12:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-09-25 10:12:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4491. [2020-09-25 10:12:48,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4491 states. [2020-09-25 10:12:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 5404 transitions. [2020-09-25 10:12:48,307 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 5404 transitions. Word has length 252 [2020-09-25 10:12:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:12:48,308 INFO L479 AbstractCegarLoop]: Abstraction has 4491 states and 5404 transitions. [2020-09-25 10:12:48,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:12:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 5404 transitions. [2020-09-25 10:12:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-09-25 10:12:48,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:12:48,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:12:48,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:12:48,320 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:12:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:12:48,320 INFO L82 PathProgramCache]: Analyzing trace with hash -910723078, now seen corresponding path program 1 times [2020-09-25 10:12:48,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:12:48,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614979220] [2020-09-25 10:12:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:12:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:12:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:48,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:12:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking...