/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:16:08,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:16:08,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:16:08,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:16:08,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:16:08,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:16:08,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:16:08,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:16:08,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:16:08,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:16:08,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:16:08,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:16:08,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:16:08,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:16:08,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:16:08,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:16:08,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:16:08,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:16:08,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:16:08,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:16:08,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:16:08,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:16:08,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:16:08,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:16:08,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:16:08,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:16:08,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:16:08,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:16:08,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:16:08,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:16:08,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:16:08,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:16:08,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:16:08,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:16:08,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:16:08,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:16:08,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:16:08,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:16:08,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:16:08,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:16:08,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:16:08,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:16:08,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:16:08,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:16:08,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:16:08,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:16:08,341 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:16:08,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:16:08,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:16:08,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:16:08,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:16:08,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:16:08,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:16:08,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:16:08,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:16:08,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:16:08,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:16:08,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:16:08,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:16:08,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:16:08,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:16:08,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:16:08,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:16:08,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:16:08,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:16:08,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:16:08,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:16:08,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:16:08,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:16:08,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:16:08,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:16:08,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:16:08,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:16:08,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:16:08,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:16:08,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:16:08,810 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:16:08,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-25 11:16:08,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f6e1dc0/58c7bba1f48f4adf9babb235b0fffe6d/FLAG69c3eb4fd [2020-09-25 11:16:09,598 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:16:09,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-25 11:16:09,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f6e1dc0/58c7bba1f48f4adf9babb235b0fffe6d/FLAG69c3eb4fd [2020-09-25 11:16:09,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f6e1dc0/58c7bba1f48f4adf9babb235b0fffe6d [2020-09-25 11:16:09,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:16:09,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:16:09,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:16:09,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:16:09,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:16:09,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:16:09" (1/1) ... [2020-09-25 11:16:09,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4297b1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:09, skipping insertion in model container [2020-09-25 11:16:09,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:16:09" (1/1) ... [2020-09-25 11:16:09,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:16:09,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:16:10,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:16:10,432 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:16:10,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:16:10,735 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:16:10,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10 WrapperNode [2020-09-25 11:16:10,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:16:10,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:16:10,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:16:10,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:16:10,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... [2020-09-25 11:16:10,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:16:10,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:16:10,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:16:10,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:16:10,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:16:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:16:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:16:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:16:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:16:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:16:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:16:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:16:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:16:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:16:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:16:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:16:12,379 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:16:12,380 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:16:12,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:16:12 BoogieIcfgContainer [2020-09-25 11:16:12,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:16:12,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:16:12,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:16:12,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:16:12,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:16:09" (1/3) ... [2020-09-25 11:16:12,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d13ef60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:16:12, skipping insertion in model container [2020-09-25 11:16:12,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:16:10" (2/3) ... [2020-09-25 11:16:12,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d13ef60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:16:12, skipping insertion in model container [2020-09-25 11:16:12,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:16:12" (3/3) ... [2020-09-25 11:16:12,400 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-09-25 11:16:12,412 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:16:12,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:16:12,448 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:16:12,489 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:16:12,489 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:16:12,489 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:16:12,489 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:16:12,489 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:16:12,490 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:16:12,490 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:16:12,490 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:16:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 11:16:12,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-25 11:16:12,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:12,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:12,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:12,554 INFO L82 PathProgramCache]: Analyzing trace with hash 405983745, now seen corresponding path program 1 times [2020-09-25 11:16:12,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:12,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229799910] [2020-09-25 11:16:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:12,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:13,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:13,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:16,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:17,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:17,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:17,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 11:16:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:16:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 11:16:17,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:17,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:16:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 11:16:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 11:16:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:16:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:18,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:18,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:18,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 11:16:18,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:18,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:16:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:16:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:16:18,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229799910] [2020-09-25 11:16:18,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:16:18,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:16:18,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263318144] [2020-09-25 11:16:18,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:16:18,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:18,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:16:18,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:16:18,247 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 11:16:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:20,659 INFO L93 Difference]: Finished difference Result 1387 states and 1841 transitions. [2020-09-25 11:16:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:16:20,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-09-25 11:16:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:20,709 INFO L225 Difference]: With dead ends: 1387 [2020-09-25 11:16:20,709 INFO L226 Difference]: Without dead ends: 779 [2020-09-25 11:16:20,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:16:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-09-25 11:16:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 659. [2020-09-25 11:16:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-09-25 11:16:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 807 transitions. [2020-09-25 11:16:20,838 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 807 transitions. Word has length 118 [2020-09-25 11:16:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:20,842 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 807 transitions. [2020-09-25 11:16:20,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:16:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 807 transitions. [2020-09-25 11:16:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 11:16:20,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:20,860 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:20,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:16:20,861 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:20,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:20,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1821694635, now seen corresponding path program 1 times [2020-09-25 11:16:20,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:20,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511210061] [2020-09-25 11:16:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:20,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:21,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:21,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:21,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:21,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:24,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:24,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:25,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:25,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-25 11:16:25,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 11:16:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 11:16:25,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:25,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:16:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 11:16:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 11:16:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:26,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:26,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:26,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:16:26,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:26,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:26,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:16:26,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:26,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:16:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:16:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:26,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:26,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:26,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:16:26,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:16:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:26,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:16:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:16:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:16:26,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511210061] [2020-09-25 11:16:26,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:16:26,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 11:16:26,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209216519] [2020-09-25 11:16:26,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:16:26,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:26,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:16:26,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:16:26,200 INFO L87 Difference]: Start difference. First operand 659 states and 807 transitions. Second operand 5 states. [2020-09-25 11:16:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:28,083 INFO L93 Difference]: Finished difference Result 1609 states and 2066 transitions. [2020-09-25 11:16:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:16:28,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-09-25 11:16:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:28,093 INFO L225 Difference]: With dead ends: 1609 [2020-09-25 11:16:28,093 INFO L226 Difference]: Without dead ends: 972 [2020-09-25 11:16:28,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:16:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-09-25 11:16:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 962. [2020-09-25 11:16:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2020-09-25 11:16:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1226 transitions. [2020-09-25 11:16:28,139 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1226 transitions. Word has length 136 [2020-09-25 11:16:28,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:28,140 INFO L479 AbstractCegarLoop]: Abstraction has 962 states and 1226 transitions. [2020-09-25 11:16:28,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:16:28,141 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1226 transitions. [2020-09-25 11:16:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 11:16:28,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:28,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:28,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:16:28,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:28,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1653572791, now seen corresponding path program 1 times [2020-09-25 11:16:28,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:28,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135510765] [2020-09-25 11:16:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:28,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:29,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:29,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:31,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:31,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 11:16:31,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:16:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3728 [2020-09-25 11:16:31,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:31,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:16:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:16:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 11:16:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:32,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:32,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:32,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:32,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:32,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:32,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:16:32,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:32,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:16:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 11:16:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:32,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:16:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:32,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:32,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:16:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:16:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 11:16:32,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:32,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:16:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 11:16:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:16:32,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135510765] [2020-09-25 11:16:32,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:16:32,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 11:16:32,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191531402] [2020-09-25 11:16:32,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:16:32,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:32,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:16:32,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:16:32,448 INFO L87 Difference]: Start difference. First operand 962 states and 1226 transitions. Second operand 11 states. [2020-09-25 11:16:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:35,868 INFO L93 Difference]: Finished difference Result 2059 states and 2754 transitions. [2020-09-25 11:16:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:16:35,869 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-09-25 11:16:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:35,880 INFO L225 Difference]: With dead ends: 2059 [2020-09-25 11:16:35,880 INFO L226 Difference]: Without dead ends: 856 [2020-09-25 11:16:35,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:16:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-09-25 11:16:35,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 694. [2020-09-25 11:16:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-09-25 11:16:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 803 transitions. [2020-09-25 11:16:35,916 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 803 transitions. Word has length 156 [2020-09-25 11:16:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:35,918 INFO L479 AbstractCegarLoop]: Abstraction has 694 states and 803 transitions. [2020-09-25 11:16:35,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:16:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 803 transitions. [2020-09-25 11:16:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 11:16:35,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:35,923 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:35,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:16:35,927 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:35,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2072612792, now seen corresponding path program 1 times [2020-09-25 11:16:35,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:35,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341700544] [2020-09-25 11:16:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:36,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:36,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:36,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:39,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:39,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 11:16:39,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:16:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3416 [2020-09-25 11:16:39,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:39,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:16:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:16:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 11:16:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:39,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:39,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:39,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:39,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 11:16:39,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:39,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:16:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 11:16:39,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:39,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:16:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:39,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:40,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:40,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 11:16:40,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:16:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 11:16:40,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:40,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:16:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:16:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 11:16:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:16:40,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341700544] [2020-09-25 11:16:40,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:16:40,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:16:40,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955590457] [2020-09-25 11:16:40,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:16:40,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:40,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:16:40,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:16:40,357 INFO L87 Difference]: Start difference. First operand 694 states and 803 transitions. Second operand 10 states. [2020-09-25 11:16:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:43,669 INFO L93 Difference]: Finished difference Result 2311 states and 2765 transitions. [2020-09-25 11:16:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 11:16:43,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-09-25 11:16:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:43,678 INFO L225 Difference]: With dead ends: 2311 [2020-09-25 11:16:43,678 INFO L226 Difference]: Without dead ends: 1639 [2020-09-25 11:16:43,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:16:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-09-25 11:16:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1319. [2020-09-25 11:16:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-09-25 11:16:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1469 transitions. [2020-09-25 11:16:43,723 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1469 transitions. Word has length 158 [2020-09-25 11:16:43,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:43,724 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1469 transitions. [2020-09-25 11:16:43,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:16:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1469 transitions. [2020-09-25 11:16:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 11:16:43,728 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:43,729 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:43,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:16:43,730 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:43,730 INFO L82 PathProgramCache]: Analyzing trace with hash -192844367, now seen corresponding path program 1 times [2020-09-25 11:16:43,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:43,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901017152] [2020-09-25 11:16:43,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:43,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:44,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:45,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:48,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 11:16:48,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:16:48,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4572 [2020-09-25 11:16:48,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:48,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:48,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:16:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 11:16:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 11:16:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:48,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:48,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:48,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:16:48,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:48,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:16:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:16:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:16:48,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:16:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:48,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:16:48,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:16:48,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:48,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:16:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:16:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:16:48,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 11:16:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:48,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 11:16:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:16:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 11:16:48,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:48,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:16:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:16:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 11:16:48,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:16:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 11:16:48,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901017152] [2020-09-25 11:16:48,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:16:48,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:16:48,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22925254] [2020-09-25 11:16:48,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:16:48,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:48,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:16:48,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:16:48,732 INFO L87 Difference]: Start difference. First operand 1319 states and 1469 transitions. Second operand 7 states. [2020-09-25 11:16:50,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:50,606 INFO L93 Difference]: Finished difference Result 2842 states and 3340 transitions. [2020-09-25 11:16:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:16:50,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-25 11:16:50,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:50,617 INFO L225 Difference]: With dead ends: 2842 [2020-09-25 11:16:50,617 INFO L226 Difference]: Without dead ends: 1695 [2020-09-25 11:16:50,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:16:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2020-09-25 11:16:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1645. [2020-09-25 11:16:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-09-25 11:16:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1846 transitions. [2020-09-25 11:16:50,686 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1846 transitions. Word has length 175 [2020-09-25 11:16:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:50,687 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 1846 transitions. [2020-09-25 11:16:50,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:16:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1846 transitions. [2020-09-25 11:16:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 11:16:50,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:50,694 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:50,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:16:50,694 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:50,695 INFO L82 PathProgramCache]: Analyzing trace with hash 6522394, now seen corresponding path program 1 times [2020-09-25 11:16:50,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:50,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491671081] [2020-09-25 11:16:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:50,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:52,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:54,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:55,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:55,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 11:16:55,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:16:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 11:16:55,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:55,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:16:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 11:16:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 11:16:55,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:16:55,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:16:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:55,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:55,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:16:55,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:55,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:16:55,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:55,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:16:55,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:55,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:16:55,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:16:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:16:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:55,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:55,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:55,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:16:55,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:16:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:16:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:16:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 11:16:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:55,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:55,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:56,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:16:56,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 11:16:56,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:16:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 11:16:56,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:16:56,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:16:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:16:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:16:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 11:16:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:16:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 11:16:56,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491671081] [2020-09-25 11:16:56,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:16:56,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 11:16:56,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995100001] [2020-09-25 11:16:56,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:16:56,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:16:56,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:16:56,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:16:56,094 INFO L87 Difference]: Start difference. First operand 1645 states and 1846 transitions. Second operand 6 states. [2020-09-25 11:16:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:16:57,591 INFO L93 Difference]: Finished difference Result 3435 states and 3982 transitions. [2020-09-25 11:16:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:16:57,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2020-09-25 11:16:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:16:57,603 INFO L225 Difference]: With dead ends: 3435 [2020-09-25 11:16:57,603 INFO L226 Difference]: Without dead ends: 1962 [2020-09-25 11:16:57,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:16:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-09-25 11:16:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1949. [2020-09-25 11:16:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2020-09-25 11:16:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2192 transitions. [2020-09-25 11:16:57,658 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2192 transitions. Word has length 180 [2020-09-25 11:16:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:16:57,659 INFO L479 AbstractCegarLoop]: Abstraction has 1949 states and 2192 transitions. [2020-09-25 11:16:57,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:16:57,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2192 transitions. [2020-09-25 11:16:57,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 11:16:57,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:16:57,666 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:16:57,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:16:57,666 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:16:57,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:16:57,667 INFO L82 PathProgramCache]: Analyzing trace with hash 974912453, now seen corresponding path program 1 times [2020-09-25 11:16:57,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:16:57,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810979654] [2020-09-25 11:16:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:16:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:16:57,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:57,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:58,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:16:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking...