/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:08:46,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:08:46,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:08:46,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:08:46,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:08:46,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:08:46,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:08:46,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:08:46,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:08:46,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:08:46,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:08:46,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:08:46,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:08:46,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:08:46,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:08:46,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:08:46,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:08:46,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:08:46,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:08:46,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:08:46,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:08:46,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:08:46,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:08:46,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:08:46,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:08:46,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:08:46,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:08:46,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:08:46,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:08:46,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:08:46,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:08:46,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:08:46,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:08:46,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:08:46,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:08:46,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:08:46,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:08:46,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:08:46,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:08:46,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:08:46,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:08:46,896 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 [2020-10-27 18:08:46,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:08:46,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:08:46,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:08:46,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:08:46,945 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:08:46,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:08:46,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:08:46,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:08:46,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:08:46,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:08:46,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:08:46,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:08:46,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:08:46,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:08:46,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:08:46,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:08:46,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:08:46,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:08:46,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:08:46,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:08:46,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:08:46,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:08:46,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:08:46,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:08:46,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:08:46,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:08:46,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:08:46,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:08:46,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:08:46,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:08:47,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:08:47,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:08:47,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:08:47,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:08:47,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:08:47,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56.c [2020-10-27 18:08:47,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edf94b972/f5da86e9d3b64ebd97d4be851c9461f4/FLAG43583b49a [2020-10-27 18:08:48,930 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:08:48,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem13_label56.c [2020-10-27 18:08:48,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edf94b972/f5da86e9d3b64ebd97d4be851c9461f4/FLAG43583b49a [2020-10-27 18:08:49,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edf94b972/f5da86e9d3b64ebd97d4be851c9461f4 [2020-10-27 18:08:49,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:08:49,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:08:49,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:08:49,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:08:49,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:08:49,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:49" (1/1) ... [2020-10-27 18:08:49,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194dab58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:49, skipping insertion in model container [2020-10-27 18:08:49,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:49" (1/1) ... [2020-10-27 18:08:49,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:08:49,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:08:51,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:08:51,465 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:08:52,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:08:52,450 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:08:52,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52 WrapperNode [2020-10-27 18:08:52,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:08:52,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:08:52,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:08:52,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:08:52,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (1/1) ... [2020-10-27 18:08:52,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:08:52,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:08:52,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:08:52,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:08:52,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (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 [2020-10-27 18:08:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:08:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:08:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:08:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:08:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 18:08:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-27 18:08:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-27 18:08:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:08:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:08:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 18:08:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-27 18:08:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-27 18:08:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:08:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:08:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:08:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:08:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:08:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:08:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:08:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:09:04,122 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:09:04,123 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:09:04,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:04 BoogieIcfgContainer [2020-10-27 18:09:04,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:09:04,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:09:04,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:09:04,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:09:04,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:08:49" (1/3) ... [2020-10-27 18:09:04,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9dd087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:09:04, skipping insertion in model container [2020-10-27 18:09:04,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:52" (2/3) ... [2020-10-27 18:09:04,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9dd087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:09:04, skipping insertion in model container [2020-10-27 18:09:04,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:04" (3/3) ... [2020-10-27 18:09:04,144 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem13_label56.c [2020-10-27 18:09:04,162 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:09:04,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:09:04,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:09:04,234 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:09:04,234 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:09:04,234 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:09:04,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:09:04,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:09:04,235 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:09:04,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:09:04,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:09:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states. [2020-10-27 18:09:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 18:09:04,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:09:04,303 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] [2020-10-27 18:09:04,304 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:09:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:09:04,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1329457938, now seen corresponding path program 1 times [2020-10-27 18:09:04,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:09:04,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975022601] [2020-10-27 18:09:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:09:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:04,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:05,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:05,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 18:09:05,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-27 18:09:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:09:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:09:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 18:09:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 18:09:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:09:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:05,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:05,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:09:05,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:05,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 18:09:05,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:09:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:09:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:09:05,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975022601] [2020-10-27 18:09:05,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:09:05,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 18:09:05,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207500318] [2020-10-27 18:09:05,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 18:09:05,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:09:05,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 18:09:05,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 18:09:05,772 INFO L87 Difference]: Start difference. First operand 1123 states. Second operand 4 states. [2020-10-27 18:09:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:09:23,981 INFO L93 Difference]: Finished difference Result 3235 states and 5915 transitions. [2020-10-27 18:09:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:09:23,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-10-27 18:09:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:09:24,029 INFO L225 Difference]: With dead ends: 3235 [2020-10-27 18:09:24,031 INFO L226 Difference]: Without dead ends: 2027 [2020-10-27 18:09:24,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:09:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-10-27 18:09:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2010. [2020-10-27 18:09:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2020-10-27 18:09:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3292 transitions. [2020-10-27 18:09:24,290 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3292 transitions. Word has length 60 [2020-10-27 18:09:24,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:09:24,292 INFO L481 AbstractCegarLoop]: Abstraction has 2010 states and 3292 transitions. [2020-10-27 18:09:24,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 18:09:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3292 transitions. [2020-10-27 18:09:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 18:09:24,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:09:24,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:09:24,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:09:24,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:09:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:09:24,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1502968362, now seen corresponding path program 1 times [2020-10-27 18:09:24,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:09:24,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080751021] [2020-10-27 18:09:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:09:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:24,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:26,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:27,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 18:09:27,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:09:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3023 [2020-10-27 18:09:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:09:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-27 18:09:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 18:09:27,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 18:09:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:09:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:27,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:27,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:27,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:09:27,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:09:27,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:09:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:09:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-27 18:09:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:09:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:27,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:27,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:09:27,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 18:09:27,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:09:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 18:09:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:09:27,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080751021] [2020-10-27 18:09:27,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:09:27,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:09:27,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063929984] [2020-10-27 18:09:27,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:09:27,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:09:28,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:09:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:09:28,001 INFO L87 Difference]: Start difference. First operand 2010 states and 3292 transitions. Second operand 6 states. [2020-10-27 18:09:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:09:53,066 INFO L93 Difference]: Finished difference Result 7359 states and 12335 transitions. [2020-10-27 18:09:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:09:53,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2020-10-27 18:09:53,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:09:53,106 INFO L225 Difference]: With dead ends: 7359 [2020-10-27 18:09:53,107 INFO L226 Difference]: Without dead ends: 5355 [2020-10-27 18:09:53,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:09:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5355 states. [2020-10-27 18:09:53,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5355 to 5331. [2020-10-27 18:09:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5331 states. [2020-10-27 18:09:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 8157 transitions. [2020-10-27 18:09:53,284 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 8157 transitions. Word has length 135 [2020-10-27 18:09:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:09:53,285 INFO L481 AbstractCegarLoop]: Abstraction has 5331 states and 8157 transitions. [2020-10-27 18:09:53,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:09:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 8157 transitions. [2020-10-27 18:09:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-27 18:09:53,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:09:53,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:09:53,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:09:53,291 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:09:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:09:53,292 INFO L82 PathProgramCache]: Analyzing trace with hash 187868645, now seen corresponding path program 1 times [2020-10-27 18:09:53,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:09:53,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941109554] [2020-10-27 18:09:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:09:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:53,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:56,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:56,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:58,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:58,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-27 18:09:58,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:09:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 18:09:58,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:09:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-27 18:09:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 18:09:58,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:09:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:58,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:58,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:09:58,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:09:58,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:09:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:09:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:58,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:09:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:58,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:58,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:09:58,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:58,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 18:09:58,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:58,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:09:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:09:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:58,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:09:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:09:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:09:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:09:58,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:09:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:09:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 18:09:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:09:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:09:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:09:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 18:09:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:09:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:09:58,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941109554] [2020-10-27 18:09:58,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:09:58,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:09:58,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679447758] [2020-10-27 18:09:58,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:09:58,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:09:58,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:09:58,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:09:58,857 INFO L87 Difference]: Start difference. First operand 5331 states and 8157 transitions. Second operand 5 states. [2020-10-27 18:10:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:20,964 INFO L93 Difference]: Finished difference Result 15553 states and 24343 transitions. [2020-10-27 18:10:20,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:20,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2020-10-27 18:10:20,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:21,029 INFO L225 Difference]: With dead ends: 15553 [2020-10-27 18:10:21,030 INFO L226 Difference]: Without dead ends: 10228 [2020-10-27 18:10:21,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:10:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10228 states. [2020-10-27 18:10:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10228 to 10222. [2020-10-27 18:10:21,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10222 states. [2020-10-27 18:10:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10222 states to 10222 states and 15094 transitions. [2020-10-27 18:10:21,448 INFO L78 Accepts]: Start accepts. Automaton has 10222 states and 15094 transitions. Word has length 211 [2020-10-27 18:10:21,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:21,452 INFO L481 AbstractCegarLoop]: Abstraction has 10222 states and 15094 transitions. [2020-10-27 18:10:21,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:21,453 INFO L276 IsEmpty]: Start isEmpty. Operand 10222 states and 15094 transitions. [2020-10-27 18:10:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-27 18:10:21,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:21,466 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:10:21,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:10:21,467 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:21,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1189693354, now seen corresponding path program 1 times [2020-10-27 18:10:21,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:21,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654078268] [2020-10-27 18:10:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:21,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:26,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:26,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-27 18:10:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 18:10:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:26,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:10:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:26,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:26,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:26,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:10:26,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:26,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:10:26,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:10:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:26,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:26,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:26,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 18:10:26,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 18:10:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:10:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:10:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:26,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 18:10:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:26,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:27,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:10:27,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 18:10:27,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:10:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 18:10:27,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:10:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:10:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:10:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 18:10:27,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:10:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-27 18:10:27,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654078268] [2020-10-27 18:10:27,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:10:27,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:10:27,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457222194] [2020-10-27 18:10:27,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:10:27,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:10:27,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:10:27,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:10:27,145 INFO L87 Difference]: Start difference. First operand 10222 states and 15094 transitions. Second operand 5 states. [2020-10-27 18:10:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:10:57,071 INFO L93 Difference]: Finished difference Result 30375 states and 46335 transitions. [2020-10-27 18:10:57,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:10:57,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-27 18:10:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:10:57,212 INFO L225 Difference]: With dead ends: 30375 [2020-10-27 18:10:57,212 INFO L226 Difference]: Without dead ends: 20159 [2020-10-27 18:10:57,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:10:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2020-10-27 18:10:57,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 20079. [2020-10-27 18:10:57,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20079 states. [2020-10-27 18:10:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20079 states to 20079 states and 29465 transitions. [2020-10-27 18:10:57,853 INFO L78 Accepts]: Start accepts. Automaton has 20079 states and 29465 transitions. Word has length 260 [2020-10-27 18:10:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:10:57,854 INFO L481 AbstractCegarLoop]: Abstraction has 20079 states and 29465 transitions. [2020-10-27 18:10:57,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:10:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 20079 states and 29465 transitions. [2020-10-27 18:10:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-27 18:10:57,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:10:57,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:10:57,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:10:57,878 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:10:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:10:57,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1290967277, now seen corresponding path program 1 times [2020-10-27 18:10:57,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:10:57,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123658946] [2020-10-27 18:10:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:10:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:10:57,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:58,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:10:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:02,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:02,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-27 18:11:02,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:11:02,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-27 18:11:02,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:11:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 280 [2020-10-27 18:11:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 18:11:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:11:03,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:11:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:03,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:03,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:03,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:11:03,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:11:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:03,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:11:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:03,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 18:11:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 18:11:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:03,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 18:11:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:03,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:03,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 18:11:03,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:03,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 18:11:03,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 18:11:03,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 18:11:03,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123658946] [2020-10-27 18:11:03,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:11:03,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:11:03,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28755715] [2020-10-27 18:11:03,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:11:03,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:11:03,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:11:03,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:11:03,774 INFO L87 Difference]: Start difference. First operand 20079 states and 29465 transitions. Second operand 5 states. [2020-10-27 18:11:32,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:11:32,857 INFO L93 Difference]: Finished difference Result 59696 states and 90700 transitions. [2020-10-27 18:11:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:11:32,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-27 18:11:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:11:33,069 INFO L225 Difference]: With dead ends: 59696 [2020-10-27 18:11:33,069 INFO L226 Difference]: Without dead ends: 39623 [2020-10-27 18:11:33,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:11:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39623 states. [2020-10-27 18:11:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39623 to 39610. [2020-10-27 18:11:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39610 states. [2020-10-27 18:11:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39610 states to 39610 states and 55807 transitions. [2020-10-27 18:11:34,689 INFO L78 Accepts]: Start accepts. Automaton has 39610 states and 55807 transitions. Word has length 328 [2020-10-27 18:11:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:11:34,690 INFO L481 AbstractCegarLoop]: Abstraction has 39610 states and 55807 transitions. [2020-10-27 18:11:34,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:11:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 39610 states and 55807 transitions. [2020-10-27 18:11:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2020-10-27 18:11:34,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:11:34,753 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:11:34,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:11:34,754 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:11:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:11:34,754 INFO L82 PathProgramCache]: Analyzing trace with hash -153874710, now seen corresponding path program 1 times [2020-10-27 18:11:34,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:11:34,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468483331] [2020-10-27 18:11:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:11:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:34,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:35,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:37,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:39,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:39,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:39,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 414 [2020-10-27 18:11:39,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:11:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 18:11:39,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:11:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 351 [2020-10-27 18:11:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 18:11:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:11:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:40,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:11:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:40,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 18:11:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:11:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 18:11:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:11:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:11:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:40,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 18:11:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:11:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:40,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:11:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:11:40,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-27 18:11:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:11:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-27 18:11:40,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468483331] [2020-10-27 18:11:40,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:11:40,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:11:40,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595308181] [2020-10-27 18:11:40,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:11:40,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:11:40,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:11:40,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:11:40,967 INFO L87 Difference]: Start difference. First operand 39610 states and 55807 transitions. Second operand 6 states. [2020-10-27 18:11:41,927 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-27 18:12:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:12:20,233 INFO L93 Difference]: Finished difference Result 118975 states and 180548 transitions. [2020-10-27 18:12:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:12:20,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 400 [2020-10-27 18:12:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:12:20,798 INFO L225 Difference]: With dead ends: 118975 [2020-10-27 18:12:20,798 INFO L226 Difference]: Without dead ends: 79371 [2020-10-27 18:12:20,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:12:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79371 states. [2020-10-27 18:12:23,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79371 to 68120. [2020-10-27 18:12:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68120 states. [2020-10-27 18:12:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68120 states to 68120 states and 99298 transitions. [2020-10-27 18:12:24,389 INFO L78 Accepts]: Start accepts. Automaton has 68120 states and 99298 transitions. Word has length 400 [2020-10-27 18:12:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:12:24,390 INFO L481 AbstractCegarLoop]: Abstraction has 68120 states and 99298 transitions. [2020-10-27 18:12:24,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:12:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand 68120 states and 99298 transitions. [2020-10-27 18:12:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-10-27 18:12:24,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:12:24,483 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:12:24,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:12:24,484 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:12:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:12:24,484 INFO L82 PathProgramCache]: Analyzing trace with hash 871658513, now seen corresponding path program 1 times [2020-10-27 18:12:24,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:12:24,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809835412] [2020-10-27 18:12:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:12:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:12:24,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:12:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:12:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:12:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking...