/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=0.2 --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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:19:08,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:19:08,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:19:08,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:19:08,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:19:08,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:19:08,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:19:08,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:19:08,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:19:08,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:19:08,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:19:08,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:19:08,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:19:08,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:19:08,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:19:08,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:19:08,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:19:08,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:19:08,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:19:08,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:19:08,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:19:08,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:19:08,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:19:08,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:19:08,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:19:08,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:19:08,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:19:08,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:19:08,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:19:08,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:19:08,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:19:08,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:19:08,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:19:08,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:19:08,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:19:08,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:19:08,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:19:08,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:19:08,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:19:08,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:19:08,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:19:08,247 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 11:19:08,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:19:08,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:19:08,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:19:08,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:19:08,306 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:19:08,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:19:08,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:19:08,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:19:08,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:19:08,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:19:08,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:19:08,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:19:08,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:19:08,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:19:08,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:19:08,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:19:08,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:19:08,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:19:08,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:19:08,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:19:08,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:19:08,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:19:08,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:19:08,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:19:08,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:19:08,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:19:08,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:19:08,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:19:08,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:19:08,312 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=0.2;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:19:08,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:19:08,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:19:08,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:19:08,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:19:08,817 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:19:08,819 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 11:19:08,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f4d641b0/96bd5315e57f4f9dbdbacb10339e1752/FLAG32b119f45 [2020-09-25 11:19:09,512 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:19:09,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-09-25 11:19:09,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f4d641b0/96bd5315e57f4f9dbdbacb10339e1752/FLAG32b119f45 [2020-09-25 11:19:09,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f4d641b0/96bd5315e57f4f9dbdbacb10339e1752 [2020-09-25 11:19:09,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:19:09,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:19:09,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:19:09,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:19:09,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:19:09,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:19:09" (1/1) ... [2020-09-25 11:19:09,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c1a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:09, skipping insertion in model container [2020-09-25 11:19:09,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:19:09" (1/1) ... [2020-09-25 11:19:09,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:19:09,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:19:10,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:19:10,422 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:19:10,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:19:10,647 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:19:10,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10 WrapperNode [2020-09-25 11:19:10,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:19:10,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:19:10,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:19:10,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:19:10,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (1/1) ... [2020-09-25 11:19:10,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:19:10,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:19:10,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:19:10,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:19:10,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (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 11:19:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:19:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:19:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:19:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:19:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:19:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:19:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:19:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:19:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:19:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:19:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:19:12,226 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:19:12,226 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:19:12,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:19:12 BoogieIcfgContainer [2020-09-25 11:19:12,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:19:12,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:19:12,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:19:12,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:19:12,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:19:09" (1/3) ... [2020-09-25 11:19:12,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e7fb60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:19:12, skipping insertion in model container [2020-09-25 11:19:12,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:19:10" (2/3) ... [2020-09-25 11:19:12,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e7fb60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:19:12, skipping insertion in model container [2020-09-25 11:19:12,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:19:12" (3/3) ... [2020-09-25 11:19:12,244 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-09-25 11:19:12,255 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:19:12,266 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:19:12,288 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:19:12,322 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:19:12,322 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:19:12,322 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:19:12,322 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:19:12,322 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:19:12,323 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:19:12,323 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:19:12,323 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:19:12,352 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 11:19:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 11:19:12,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:12,363 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 11:19:12,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:12,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1927363665, now seen corresponding path program 1 times [2020-09-25 11:19:12,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:12,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192798223] [2020-09-25 11:19:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:12,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:12,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:13,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:13,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 11:19:13,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-09-25 11:19:13,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:13,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:19:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 11:19:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 11:19:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:19:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:13,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:13,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:19:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:13,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:19:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:19:13,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:13,462 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 11:19:13,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192798223] [2020-09-25 11:19:13,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:19:13,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:19:13,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239831775] [2020-09-25 11:19:13,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:19:13,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:13,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:19:13,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:19:13,496 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 11:19:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:15,548 INFO L93 Difference]: Finished difference Result 1069 states and 1495 transitions. [2020-09-25 11:19:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:19:15,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-09-25 11:19:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:15,575 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 11:19:15,575 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 11:19:15,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:19:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 11:19:15,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 543. [2020-09-25 11:19:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-25 11:19:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 670 transitions. [2020-09-25 11:19:15,680 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 670 transitions. Word has length 44 [2020-09-25 11:19:15,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:15,681 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 670 transitions. [2020-09-25 11:19:15,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:19:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 670 transitions. [2020-09-25 11:19:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-25 11:19:15,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:15,688 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 11:19:15,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:19:15,689 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash -739682472, now seen corresponding path program 1 times [2020-09-25 11:19:15,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:15,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420881695] [2020-09-25 11:19:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:15,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:15,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:17,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:17,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 11:19:17,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:19:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1805 [2020-09-25 11:19:17,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:17,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:19:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:19:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 11:19:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:17,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:17,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:17,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:17,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:19:17,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:17,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:19:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:19:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:17,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:19:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:17,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:17,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 11:19:17,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 11:19:17,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:17,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:17,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:19:17,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:19:17,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:19:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:17,877 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 11:19:17,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420881695] [2020-09-25 11:19:17,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:19:17,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 11:19:17,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018576271] [2020-09-25 11:19:17,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:19:17,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:17,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:19:17,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:19:17,882 INFO L87 Difference]: Start difference. First operand 543 states and 670 transitions. Second operand 6 states. [2020-09-25 11:19:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:19,835 INFO L93 Difference]: Finished difference Result 1437 states and 1858 transitions. [2020-09-25 11:19:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 11:19:19,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-09-25 11:19:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:19,842 INFO L225 Difference]: With dead ends: 1437 [2020-09-25 11:19:19,842 INFO L226 Difference]: Without dead ends: 909 [2020-09-25 11:19:19,846 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 11:19:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-09-25 11:19:19,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 859. [2020-09-25 11:19:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-09-25 11:19:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1029 transitions. [2020-09-25 11:19:19,913 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1029 transitions. Word has length 124 [2020-09-25 11:19:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:19,916 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1029 transitions. [2020-09-25 11:19:19,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:19:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1029 transitions. [2020-09-25 11:19:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 11:19:19,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:19,925 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 11:19:19,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:19:19,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:19,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1991578147, now seen corresponding path program 1 times [2020-09-25 11:19:19,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:19,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511954137] [2020-09-25 11:19:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:20,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:22,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:24,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 11:19:24,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:19:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4514 [2020-09-25 11:19:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:24,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:19:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:19:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 11:19:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:24,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:24,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:24,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:24,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:24,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:24,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:19:24,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:24,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:19:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:19:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:24,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:19:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:24,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:24,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:19:24,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 11:19:24,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:24,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:24,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:19:24,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:19:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 11:19:24,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:24,881 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 11:19:24,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511954137] [2020-09-25 11:19:24,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:19:24,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 11:19:24,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326424896] [2020-09-25 11:19:24,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:19:24,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:24,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:19:24,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:19:24,884 INFO L87 Difference]: Start difference. First operand 859 states and 1029 transitions. Second operand 8 states. [2020-09-25 11:19:30,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:30,114 INFO L93 Difference]: Finished difference Result 2395 states and 2934 transitions. [2020-09-25 11:19:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:19:30,115 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-25 11:19:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:30,123 INFO L225 Difference]: With dead ends: 2395 [2020-09-25 11:19:30,123 INFO L226 Difference]: Without dead ends: 1551 [2020-09-25 11:19:30,127 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 11:19:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-09-25 11:19:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1506. [2020-09-25 11:19:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-09-25 11:19:30,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1769 transitions. [2020-09-25 11:19:30,210 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1769 transitions. Word has length 133 [2020-09-25 11:19:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:30,211 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 1769 transitions. [2020-09-25 11:19:30,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:19:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1769 transitions. [2020-09-25 11:19:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 11:19:30,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:30,216 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 11:19:30,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:19:30,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:30,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:30,217 INFO L82 PathProgramCache]: Analyzing trace with hash -718653912, now seen corresponding path program 1 times [2020-09-25 11:19:30,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:30,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750915910] [2020-09-25 11:19:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:30,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:30,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:30,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:31,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:31,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:32,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 11:19:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:19:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3638 [2020-09-25 11:19:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:33,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:19:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:19:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-25 11:19:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:33,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:34,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:34,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:19:34,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:19:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:19:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:19:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:34,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:34,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:34,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 11:19:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 11:19:34,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:34,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:34,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:19:34,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:34,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:19:34,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:34,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:19:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:34,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:34,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:34,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 11:19:34,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:34,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 11:19:34,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:34,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:19:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:19:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:19:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:19:34,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750915910] [2020-09-25 11:19:34,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:19:34,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:19:34,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455502619] [2020-09-25 11:19:34,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:19:34,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:34,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:19:34,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:19:34,532 INFO L87 Difference]: Start difference. First operand 1506 states and 1769 transitions. Second operand 10 states. [2020-09-25 11:19:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:40,089 INFO L93 Difference]: Finished difference Result 4109 states and 5309 transitions. [2020-09-25 11:19:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 11:19:40,090 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-25 11:19:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:40,112 INFO L225 Difference]: With dead ends: 4109 [2020-09-25 11:19:40,112 INFO L226 Difference]: Without dead ends: 3255 [2020-09-25 11:19:40,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-09-25 11:19:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-09-25 11:19:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 2968. [2020-09-25 11:19:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2968 states. [2020-09-25 11:19:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 3760 transitions. [2020-09-25 11:19:40,223 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 3760 transitions. Word has length 203 [2020-09-25 11:19:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:40,224 INFO L479 AbstractCegarLoop]: Abstraction has 2968 states and 3760 transitions. [2020-09-25 11:19:40,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:19:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 3760 transitions. [2020-09-25 11:19:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 11:19:40,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:40,229 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 11:19:40,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:19:40,230 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:40,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1157417370, now seen corresponding path program 1 times [2020-09-25 11:19:40,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:40,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099600233] [2020-09-25 11:19:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:40,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:40,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:43,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:43,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 11:19:45,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:19:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 11:19:45,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:45,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:19:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:19:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 11:19:45,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:19:45,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:45,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:45,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:45,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:19:45,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:45,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:19:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:19:45,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:19:45,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:19:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:19:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 11:19:45,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:45,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:19:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 11:19:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:45,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 11:19:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:45,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:45,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:19:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:45,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 11:19:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:45,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:19:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:19:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:19:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:46,156 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 11:19:46,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099600233] [2020-09-25 11:19:46,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:19:46,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 11:19:46,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645455844] [2020-09-25 11:19:46,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:19:46,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:46,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:19:46,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:19:46,159 INFO L87 Difference]: Start difference. First operand 2968 states and 3760 transitions. Second operand 11 states. [2020-09-25 11:19:49,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:49,760 INFO L93 Difference]: Finished difference Result 7538 states and 10570 transitions. [2020-09-25 11:19:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:19:49,761 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 216 [2020-09-25 11:19:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:49,796 INFO L225 Difference]: With dead ends: 7538 [2020-09-25 11:19:49,796 INFO L226 Difference]: Without dead ends: 4438 [2020-09-25 11:19:49,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:19:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2020-09-25 11:19:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4184. [2020-09-25 11:19:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4184 states. [2020-09-25 11:19:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4184 states to 4184 states and 5218 transitions. [2020-09-25 11:19:49,956 INFO L78 Accepts]: Start accepts. Automaton has 4184 states and 5218 transitions. Word has length 216 [2020-09-25 11:19:49,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:49,956 INFO L479 AbstractCegarLoop]: Abstraction has 4184 states and 5218 transitions. [2020-09-25 11:19:49,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:19:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4184 states and 5218 transitions. [2020-09-25 11:19:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 11:19:49,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:49,963 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 11:19:49,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:19:49,963 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash -682886184, now seen corresponding path program 1 times [2020-09-25 11:19:49,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:49,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157757083] [2020-09-25 11:19:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:50,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:50,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:51,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4399 [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:19:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:19:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-09-25 11:19:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:19:54,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:19:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:54,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:54,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:19:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:19:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:19:54,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:54,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:19:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:19:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:19:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:54,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:54,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:54,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:54,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 11:19:54,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 11:19:54,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:54,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:19:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 11:19:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:19:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:19:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:55,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:55,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:19:55,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 11:19:55,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:19:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-09-25 11:19:55,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:19:55,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:19:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:19:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:19:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 11:19:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:19:55,449 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 11:19:55,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157757083] [2020-09-25 11:19:55,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:19:55,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:19:55,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599331345] [2020-09-25 11:19:55,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:19:55,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:19:55,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:19:55,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:19:55,453 INFO L87 Difference]: Start difference. First operand 4184 states and 5218 transitions. Second operand 10 states. [2020-09-25 11:19:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:19:58,755 INFO L93 Difference]: Finished difference Result 8849 states and 11339 transitions. [2020-09-25 11:19:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:19:58,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 252 [2020-09-25 11:19:58,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:19:58,781 INFO L225 Difference]: With dead ends: 8849 [2020-09-25 11:19:58,781 INFO L226 Difference]: Without dead ends: 5277 [2020-09-25 11:19:58,794 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 11:19:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5277 states. [2020-09-25 11:19:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5277 to 5090. [2020-09-25 11:19:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5090 states. [2020-09-25 11:19:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5090 states to 5090 states and 6285 transitions. [2020-09-25 11:19:58,917 INFO L78 Accepts]: Start accepts. Automaton has 5090 states and 6285 transitions. Word has length 252 [2020-09-25 11:19:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:19:58,918 INFO L479 AbstractCegarLoop]: Abstraction has 5090 states and 6285 transitions. [2020-09-25 11:19:58,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:19:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5090 states and 6285 transitions. [2020-09-25 11:19:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-09-25 11:19:58,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:19:58,929 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 11:19:58,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:19:58,929 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:19:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:19:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash -910723078, now seen corresponding path program 1 times [2020-09-25 11:19:58,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:19:58,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064118354] [2020-09-25 11:19:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:19:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:19:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:19:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking...