/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:46:03,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:46:03,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:46:03,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:46:03,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:46:03,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:46:03,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:46:03,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:46:03,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:46:03,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:46:03,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:46:03,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:46:03,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:46:03,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:46:03,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:46:03,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:46:03,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:46:03,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:46:03,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:46:03,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:46:03,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:46:03,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:46:03,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:46:03,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:46:03,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:46:03,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:46:03,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:46:03,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:46:03,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:46:03,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:46:03,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:46:03,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:46:03,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:46:03,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:46:03,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:46:03,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:46:03,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:46:03,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:46:03,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:46:03,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:46:03,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:46:03,250 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 [2020-09-24 23:46:03,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:46:03,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:46:03,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:46:03,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:46:03,302 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:46:03,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:46:03,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:46:03,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:46:03,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:46:03,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:46:03,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:46:03,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:46:03,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:46:03,306 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:46:03,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:46:03,306 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:46:03,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:46:03,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:46:03,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:46:03,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:46:03,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:46:03,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:03,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:46:03,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:46:03,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:46:03,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:46:03,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:46:03,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:46:03,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:46:03,309 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:46:03,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:46:03,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:46:03,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:46:03,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:46:03,824 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:46:03,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_20-1.c [2020-09-24 23:46:03,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bccf1db3/e9ffddb576584443ac74f0083c4e0b5c/FLAGdcfd53c86 [2020-09-24 23:46:04,442 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:46:04,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_20-1.c [2020-09-24 23:46:04,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bccf1db3/e9ffddb576584443ac74f0083c4e0b5c/FLAGdcfd53c86 [2020-09-24 23:46:04,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bccf1db3/e9ffddb576584443ac74f0083c4e0b5c [2020-09-24 23:46:04,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:46:04,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:46:04,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:04,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:46:04,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:46:04,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:04" (1/1) ... [2020-09-24 23:46:04,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74de5b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:04, skipping insertion in model container [2020-09-24 23:46:04,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:04" (1/1) ... [2020-09-24 23:46:04,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:46:04,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:46:05,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:05,087 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:46:05,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:05,119 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:46:05,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05 WrapperNode [2020-09-24 23:46:05,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:05,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:46:05,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:46:05,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:46:05,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (1/1) ... [2020-09-24 23:46:05,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:46:05,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:46:05,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:46:05,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:46:05,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (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 [2020-09-24 23:46:05,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:46:05,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:46:05,331 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:46:05,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:46:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:46:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:46:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:46:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:46:05,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:46:05,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:46:05,538 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:46:05,539 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:46:05,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:05 BoogieIcfgContainer [2020-09-24 23:46:05,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:46:05,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:46:05,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:46:05,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:46:05,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:46:04" (1/3) ... [2020-09-24 23:46:05,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbd6385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:05, skipping insertion in model container [2020-09-24 23:46:05,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:05" (2/3) ... [2020-09-24 23:46:05,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbd6385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:05, skipping insertion in model container [2020-09-24 23:46:05,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:05" (3/3) ... [2020-09-24 23:46:05,555 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_20-1.c [2020-09-24 23:46:05,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:46:05,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:46:05,600 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:46:05,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:46:05,630 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:46:05,630 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:46:05,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:46:05,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:46:05,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:46:05,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:46:05,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:46:05,659 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:46:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:46:05,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:05,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:05,671 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:05,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:46:05,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:05,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66408469] [2020-09-24 23:46:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:46:06,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:06,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-24 23:46:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:46:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:46:06,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:06,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:06,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:06,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:06,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:06,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:46:06,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:06,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66408469] [2020-09-24 23:46:06,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:06,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:06,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309205143] [2020-09-24 23:46:06,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:06,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:06,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:06,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:06,263 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:46:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:06,394 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:46:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:06,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:46:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:06,414 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:06,415 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:46:06,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:46:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:46:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:06,487 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:46:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:06,487 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:06,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:06,488 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:46:06,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:06,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:06,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:46:06,492 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:06,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:06,493 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:46:06,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:06,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404099354] [2020-09-24 23:46:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:46:06,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-24 23:46:06,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:06,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:06,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:46:06,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:06,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404099354] [2020-09-24 23:46:06,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:06,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:06,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616999452] [2020-09-24 23:46:06,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:06,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:06,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:06,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:06,801 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:46:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:06,893 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:46:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:06,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:46:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:06,896 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:46:06,896 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:46:06,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:06,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:46:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:46:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:06,907 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:46:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:06,908 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:06,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:46:06,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:06,911 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-24 23:46:06,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:46:06,911 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:06,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:06,912 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:46:06,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:06,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580526519] [2020-09-24 23:46:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:46:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:08,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2045 [2020-09-24 23:46:08,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:46:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:08,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:08,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:08,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:09,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:09,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 23:46:09,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:09,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:46:09,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:09,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:09,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:09,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:09,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:09,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580526519] [2020-09-24 23:46:09,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:09,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:09,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885504087] [2020-09-24 23:46:09,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:09,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:09,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:09,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:09,314 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:46:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:09,482 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:46:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:09,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:46:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:09,485 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:09,485 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:46:09,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:46:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:46:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:09,498 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:46:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:09,498 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:09,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:09,499 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:46:09,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:09,501 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:09,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:46:09,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:09,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:09,502 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:46:09,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:09,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636116496] [2020-09-24 23:46:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:46:11,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:46:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1699 [2020-09-24 23:46:11,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:46:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:11,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:11,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:11,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:11,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-24 23:46:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:11,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:46:11,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:11,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:11,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:11,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636116496] [2020-09-24 23:46:11,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:11,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:11,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729358440] [2020-09-24 23:46:11,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:11,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:11,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:11,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:11,865 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 23:46:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:12,042 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-24 23:46:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:12,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 23:46:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:12,046 INFO L225 Difference]: With dead ends: 52 [2020-09-24 23:46:12,046 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:46:12,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:12,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:46:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-24 23:46:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:12,059 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-24 23:46:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:12,059 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:12,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 23:46:12,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:12,063 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:12,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:46:12,064 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-24 23:46:12,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:12,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430752227] [2020-09-24 23:46:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:12,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:17,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:46:17,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 23:46:17,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 23:46:17,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:17,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:46:17,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:17,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:17,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:17,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:17,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:17,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:17,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:17,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:18,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:22,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 23:46:22,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 23:46:22,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:22,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:46:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 23:46:22,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:22,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:22,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:22,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 23:46:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:22,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:22,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:22,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:22,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:22,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:22,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:23,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:23,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:46:23,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:46:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1512 [2020-09-24 23:46:23,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:46:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:23,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:24,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:46:24,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:24,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:24,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:24,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:24,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:24,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:24,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 68 proven. 69 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-24 23:46:24,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430752227] [2020-09-24 23:46:24,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:24,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:46:24,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462438512] [2020-09-24 23:46:24,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:46:24,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:24,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:46:24,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:46:24,204 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 11 states. [2020-09-24 23:46:24,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:24,532 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-09-24 23:46:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:46:24,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2020-09-24 23:46:24,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:24,538 INFO L225 Difference]: With dead ends: 76 [2020-09-24 23:46:24,538 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:46:24,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:46:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:46:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 23:46:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 23:46:24,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2020-09-24 23:46:24,567 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 84 [2020-09-24 23:46:24,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:24,576 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2020-09-24 23:46:24,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:46:24,576 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2020-09-24 23:46:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 23:46:24,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:24,583 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:24,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:46:24,584 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:24,584 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 1 times [2020-09-24 23:46:24,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:24,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060551170] [2020-09-24 23:46:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 23:46:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 23:46:29,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:46:29,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:29,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:29,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:34,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 23:46:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:34,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:34,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:35,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:35,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 23:46:35,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:35,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:35,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:35,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:35,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 23:46:35,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:35,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:35,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:35,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:35,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:35,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:35,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:35,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:46:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:35,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:46:36,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:46:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:36,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 23:46:36,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:36,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:36,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:46:36,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:36,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:36,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:36,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:46:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:36,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:36,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:36,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:36,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 68 proven. 79 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-24 23:46:36,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060551170] [2020-09-24 23:46:36,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:36,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 23:46:36,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847965709] [2020-09-24 23:46:36,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:46:36,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:36,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:46:36,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:46:36,586 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 17 states. [2020-09-24 23:46:36,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:36,884 INFO L93 Difference]: Finished difference Result 101 states and 139 transitions. [2020-09-24 23:46:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:46:36,884 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 87 [2020-09-24 23:46:36,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:36,887 INFO L225 Difference]: With dead ends: 101 [2020-09-24 23:46:36,887 INFO L226 Difference]: Without dead ends: 64 [2020-09-24 23:46:36,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2020-09-24 23:46:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-24 23:46:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-09-24 23:46:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 23:46:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-09-24 23:46:36,899 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 87 [2020-09-24 23:46:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:36,899 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-09-24 23:46:36,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:46:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-09-24 23:46:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 23:46:36,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:36,901 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:36,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:46:36,902 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:36,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-24 23:46:36,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:36,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814945082] [2020-09-24 23:46:36,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:41,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:41,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:46:41,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:41,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:41,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:41,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:41,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:41,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:41,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:41,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:41,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:41,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:41,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:46,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:46:46,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 23:46:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:46,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:46,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:47,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:47,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-24 23:46:47,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:46:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:47,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:47,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:47,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:47,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:46:47,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:47,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:47,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:46:52,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:46:52,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:46:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:52,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:52,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 23:46:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:52,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:52,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:52,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:52,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:52,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:52,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:52,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:46:52,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 89 proven. 69 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-24 23:46:52,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814945082] [2020-09-24 23:46:52,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:52,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:46:52,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841924977] [2020-09-24 23:46:52,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:46:52,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:52,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:46:52,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:46:52,613 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 11 states. [2020-09-24 23:46:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:52,969 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2020-09-24 23:46:52,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:46:52,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-09-24 23:46:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:52,978 INFO L225 Difference]: With dead ends: 124 [2020-09-24 23:46:52,978 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 23:46:52,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:46:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 23:46:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2020-09-24 23:46:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 23:46:52,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2020-09-24 23:46:52,998 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 89 [2020-09-24 23:46:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:52,999 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2020-09-24 23:46:52,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:46:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2020-09-24 23:46:53,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 23:46:53,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:53,001 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:53,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:46:53,002 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:53,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1883319261, now seen corresponding path program 2 times [2020-09-24 23:46:53,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:53,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143945078] [2020-09-24 23:46:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:53,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:57,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking...