/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:29:36,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:29:36,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:29:36,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:29:36,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:29:36,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:29:36,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:29:36,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:29:36,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:29:36,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:29:36,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:29:36,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:29:36,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:29:36,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:29:36,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:29:36,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:29:36,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:29:36,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:29:36,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:29:36,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:29:36,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:29:36,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:29:36,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:29:36,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:29:36,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:29:36,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:29:36,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:29:36,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:29:36,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:29:36,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:29:36,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:29:36,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:29:36,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:29:36,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:29:36,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:29:36,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:29:36,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:29:36,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:29:36,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:29:36,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:29:36,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:29:36,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:29:36,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:29:36,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:29:36,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:29:36,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:29:36,136 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:29:36,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:29:36,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:29:36,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:29:36,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:29:36,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:29:36,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:29:36,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:29:36,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:29:36,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:29:36,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:29:36,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:29:36,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:29:36,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:29:36,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:29:36,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:29:36,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:29:36,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:29:36,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:29:36,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:29:36,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:29:36,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:29:36,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:29:36,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:29:36,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:29:36,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:29:36,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:29:36,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:29:36,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:29:36,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:29:36,614 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:29:36,615 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-09-25 04:29:36,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a446b881c/4fff7862440049e5948da8d08b8c9f1b/FLAG87ce1ca9e [2020-09-25 04:29:37,346 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:29:37,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-09-25 04:29:37,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a446b881c/4fff7862440049e5948da8d08b8c9f1b/FLAG87ce1ca9e [2020-09-25 04:29:37,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a446b881c/4fff7862440049e5948da8d08b8c9f1b [2020-09-25 04:29:37,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:29:37,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:29:37,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:29:37,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:29:37,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:29:37,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:29:37" (1/1) ... [2020-09-25 04:29:37,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:37, skipping insertion in model container [2020-09-25 04:29:37,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:29:37" (1/1) ... [2020-09-25 04:29:37,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:29:37,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:29:38,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:29:38,255 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:29:38,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:29:38,490 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:29:38,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38 WrapperNode [2020-09-25 04:29:38,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:29:38,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:29:38,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:29:38,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:29:38,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... [2020-09-25 04:29:38,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:29:38,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:29:38,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:29:38,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:29:38,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:29:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:29:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:29:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 04:29:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:29:38,751 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 04:29:38,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:29:38,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:29:38,753 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:29:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:29:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:29:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:29:40,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:29:40,255 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:29:40,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:29:40 BoogieIcfgContainer [2020-09-25 04:29:40,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:29:40,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:29:40,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:29:40,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:29:40,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:29:37" (1/3) ... [2020-09-25 04:29:40,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411ae65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:29:40, skipping insertion in model container [2020-09-25 04:29:40,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:29:38" (2/3) ... [2020-09-25 04:29:40,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411ae65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:29:40, skipping insertion in model container [2020-09-25 04:29:40,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:29:40" (3/3) ... [2020-09-25 04:29:40,275 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-09-25 04:29:40,287 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:29:40,300 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:29:40,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:29:40,360 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:29:40,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:29:40,361 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:29:40,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:29:40,361 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:29:40,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:29:40,361 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:29:40,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:29:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 04:29:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:29:40,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:40,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:40,408 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash -843476993, now seen corresponding path program 1 times [2020-09-25 04:29:40,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:40,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159932049] [2020-09-25 04:29:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:40,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:41,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:41,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:41,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 04:29:41,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:29:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 887 [2020-09-25 04:29:41,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:41,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:29:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:29:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 04:29:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:29:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:41,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:41,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:41,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:29:41,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:41,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:29:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:41,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159932049] [2020-09-25 04:29:41,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:29:41,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:29:41,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695338034] [2020-09-25 04:29:41,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:29:41,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:41,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:29:41,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:29:41,735 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 04:29:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:43,897 INFO L93 Difference]: Finished difference Result 1163 states and 1589 transitions. [2020-09-25 04:29:43,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:29:43,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 04:29:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:43,922 INFO L225 Difference]: With dead ends: 1163 [2020-09-25 04:29:43,922 INFO L226 Difference]: Without dead ends: 634 [2020-09-25 04:29:43,939 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 04:29:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-25 04:29:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 580. [2020-09-25 04:29:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 04:29:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 732 transitions. [2020-09-25 04:29:44,064 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 732 transitions. Word has length 64 [2020-09-25 04:29:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:44,065 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 732 transitions. [2020-09-25 04:29:44,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:29:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 732 transitions. [2020-09-25 04:29:44,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:29:44,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:44,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:44,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:29:44,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1704622095, now seen corresponding path program 1 times [2020-09-25 04:29:44,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:44,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566120969] [2020-09-25 04:29:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:44,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:44,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:44,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:47,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:47,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 04:29:47,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:29:47,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3561 [2020-09-25 04:29:47,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:47,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 04:29:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 04:29:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:47,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:47,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:47,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:29:47,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:47,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:29:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 04:29:47,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:47,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:29:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:47,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566120969] [2020-09-25 04:29:47,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:47,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:29:47,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543206918] [2020-09-25 04:29:47,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:29:47,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:47,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:29:47,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:29:47,972 INFO L87 Difference]: Start difference. First operand 580 states and 732 transitions. Second operand 5 states. [2020-09-25 04:29:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:49,791 INFO L93 Difference]: Finished difference Result 1461 states and 1941 transitions. [2020-09-25 04:29:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:29:49,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-09-25 04:29:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:49,801 INFO L225 Difference]: With dead ends: 1461 [2020-09-25 04:29:49,801 INFO L226 Difference]: Without dead ends: 896 [2020-09-25 04:29:49,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:29:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-09-25 04:29:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 884. [2020-09-25 04:29:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-09-25 04:29:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1146 transitions. [2020-09-25 04:29:49,847 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1146 transitions. Word has length 143 [2020-09-25 04:29:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:49,848 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1146 transitions. [2020-09-25 04:29:49,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:29:49,849 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1146 transitions. [2020-09-25 04:29:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-09-25 04:29:49,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:49,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:49,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:29:49,855 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:49,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1280909557, now seen corresponding path program 1 times [2020-09-25 04:29:49,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:49,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103154971] [2020-09-25 04:29:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:49,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:50,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-25 04:29:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:29:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1615 [2020-09-25 04:29:51,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-09-25 04:29:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 04:29:51,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:51,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:51,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:51,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:29:51,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:51,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:51,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:51,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:51,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 04:29:51,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 04:29:51,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:51,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:29:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:51,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103154971] [2020-09-25 04:29:51,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:51,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:29:51,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595444197] [2020-09-25 04:29:51,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:29:51,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:51,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:29:51,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:29:51,903 INFO L87 Difference]: Start difference. First operand 884 states and 1146 transitions. Second operand 6 states. [2020-09-25 04:29:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:54,294 INFO L93 Difference]: Finished difference Result 3013 states and 4181 transitions. [2020-09-25 04:29:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:29:54,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-09-25 04:29:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:54,309 INFO L225 Difference]: With dead ends: 3013 [2020-09-25 04:29:54,309 INFO L226 Difference]: Without dead ends: 2144 [2020-09-25 04:29:54,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:29:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-09-25 04:29:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2102. [2020-09-25 04:29:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2020-09-25 04:29:54,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2759 transitions. [2020-09-25 04:29:54,396 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2759 transitions. Word has length 155 [2020-09-25 04:29:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:54,397 INFO L479 AbstractCegarLoop]: Abstraction has 2102 states and 2759 transitions. [2020-09-25 04:29:54,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:29:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2759 transitions. [2020-09-25 04:29:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-25 04:29:54,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:54,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 04:29:54,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:29:54,408 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:54,408 INFO L82 PathProgramCache]: Analyzing trace with hash 522738282, now seen corresponding path program 1 times [2020-09-25 04:29:54,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:54,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921785392] [2020-09-25 04:29:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:54,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:54,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:55,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:59,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 04:29:59,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 04:29:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 04:29:59,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:59,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 04:29:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 04:29:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:59,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:59,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:59,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:59,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:29:59,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:59,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:59,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:59,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:59,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:59,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:29:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:29:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:59,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:29:59,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:29:59,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:59,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:59,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:29:59,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:59,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 04:29:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:59,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:59,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:29:59,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:59,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 04:29:59,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:59,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:59,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:29:59,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:30:00,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921785392] [2020-09-25 04:30:00,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:30:00,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:30:00,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746569292] [2020-09-25 04:30:00,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:30:00,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:30:00,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:30:00,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:30:00,205 INFO L87 Difference]: Start difference. First operand 2102 states and 2759 transitions. Second operand 8 states. [2020-09-25 04:30:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:30:03,275 INFO L93 Difference]: Finished difference Result 4675 states and 6211 transitions. [2020-09-25 04:30:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:30:03,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 236 [2020-09-25 04:30:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:30:03,295 INFO L225 Difference]: With dead ends: 4675 [2020-09-25 04:30:03,295 INFO L226 Difference]: Without dead ends: 1770 [2020-09-25 04:30:03,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:30:03,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2020-09-25 04:30:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1756. [2020-09-25 04:30:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1756 states. [2020-09-25 04:30:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2135 transitions. [2020-09-25 04:30:03,371 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2135 transitions. Word has length 236 [2020-09-25 04:30:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:30:03,372 INFO L479 AbstractCegarLoop]: Abstraction has 1756 states and 2135 transitions. [2020-09-25 04:30:03,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:30:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2135 transitions. [2020-09-25 04:30:03,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-09-25 04:30:03,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:30:03,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-09-25 04:30:03,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:30:03,384 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:30:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:30:03,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1039864954, now seen corresponding path program 1 times [2020-09-25 04:30:03,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:30:03,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269929841] [2020-09-25 04:30:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:30:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:03,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:03,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:03,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:06,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:08,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:08,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-09-25 04:30:08,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:30:08,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 04:30:08,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:08,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:30:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 04:30:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 04:30:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:30:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:08,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:08,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:30:08,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:08,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:30:08,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:08,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:30:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:30:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:30:08,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:30:08,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:30:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:08,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:08,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:08,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:30:08,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 04:30:08,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:08,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:30:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:30:08,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:30:08,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:30:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:08,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:09,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:09,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 04:30:09,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 04:30:09,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:09,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:30:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:30:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 04:30:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:30:09,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269929841] [2020-09-25 04:30:09,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:30:09,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:30:09,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399774448] [2020-09-25 04:30:09,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:30:09,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:30:09,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:30:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:30:09,362 INFO L87 Difference]: Start difference. First operand 1756 states and 2135 transitions. Second operand 8 states. [2020-09-25 04:30:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:30:12,023 INFO L93 Difference]: Finished difference Result 3871 states and 4795 transitions. [2020-09-25 04:30:12,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:30:12,024 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 289 [2020-09-25 04:30:12,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:30:12,035 INFO L225 Difference]: With dead ends: 3871 [2020-09-25 04:30:12,035 INFO L226 Difference]: Without dead ends: 2130 [2020-09-25 04:30:12,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:30:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2020-09-25 04:30:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2084. [2020-09-25 04:30:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-09-25 04:30:12,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2503 transitions. [2020-09-25 04:30:12,107 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2503 transitions. Word has length 289 [2020-09-25 04:30:12,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:30:12,108 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2503 transitions. [2020-09-25 04:30:12,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:30:12,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2503 transitions. [2020-09-25 04:30:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-25 04:30:12,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:30:12,115 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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 04:30:12,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:30:12,116 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:30:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:30:12,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1530315794, now seen corresponding path program 1 times [2020-09-25 04:30:12,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:30:12,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313349677] [2020-09-25 04:30:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:30:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:12,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:12,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:17,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:17,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-09-25 04:30:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:30:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:30:17,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:17,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:17,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:30:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 04:30:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 04:30:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:17,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:30:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:17,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:17,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:30:17,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:17,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:30:17,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:17,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:30:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:30:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:30:17,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:30:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:17,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:17,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:17,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 04:30:17,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 04:30:17,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:17,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:30:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:30:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 04:30:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:30:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:30:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:17,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:30:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 04:30:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:30:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 04:30:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:30:17,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:30:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:30:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:30:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 04:30:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:30:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:30:17,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313349677] [2020-09-25 04:30:17,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:30:17,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:30:17,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141073004] [2020-09-25 04:30:17,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:30:17,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:30:17,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:30:17,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:30:17,909 INFO L87 Difference]: Start difference. First operand 2084 states and 2503 transitions. Second operand 8 states. [2020-09-25 04:30:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:30:20,596 INFO L93 Difference]: Finished difference Result 4509 states and 5450 transitions. [2020-09-25 04:30:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:30:20,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 295 [2020-09-25 04:30:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:30:20,609 INFO L225 Difference]: With dead ends: 4509 [2020-09-25 04:30:20,610 INFO L226 Difference]: Without dead ends: 2440 [2020-09-25 04:30:20,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:30:20,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2020-09-25 04:30:20,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2396. [2020-09-25 04:30:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2020-09-25 04:30:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 2744 transitions. [2020-09-25 04:30:20,681 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 2744 transitions. Word has length 295 [2020-09-25 04:30:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:30:20,681 INFO L479 AbstractCegarLoop]: Abstraction has 2396 states and 2744 transitions. [2020-09-25 04:30:20,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:30:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 2744 transitions. [2020-09-25 04:30:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-25 04:30:20,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:30:20,692 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 04:30:20,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:30:20,693 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:30:20,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:30:20,693 INFO L82 PathProgramCache]: Analyzing trace with hash -562456677, now seen corresponding path program 1 times [2020-09-25 04:30:20,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:30:20,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36583280] [2020-09-25 04:30:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:30:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:30:20,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:20,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:30:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking...