/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/Problem16_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:41:19,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:41:19,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:41:19,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:41:19,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:41:19,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:41:19,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:41:19,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:41:19,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:41:19,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:41:19,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:41:19,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:41:19,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:41:19,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:41:19,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:41:19,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:41:19,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:41:19,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:41:19,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:41:19,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:41:19,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:41:19,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:41:19,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:41:19,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:41:19,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:41:19,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:41:19,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:41:19,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:41:19,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:41:19,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:41:19,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:41:19,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:41:19,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:41:19,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:41:19,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:41:19,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:41:19,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:41:19,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:41:19,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:41:19,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:41:19,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:41:19,415 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 18:41:19,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:41:19,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:41:19,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:41:19,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:41:19,444 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:41:19,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:41:19,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:41:19,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:41:19,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:41:19,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:41:19,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:41:19,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:41:19,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:41:19,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:41:19,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:41:19,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:41:19,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:41:19,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:41:19,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:41:19,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:41:19,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:41:19,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:41:19,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:41:19,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:41:19,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:41:19,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:41:19,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:41:19,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:41:19,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:41:19,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:41:19,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:41:19,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:41:19,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:41:19,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:41:19,847 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:41:19,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-27 18:41:19,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f999dd188/6b5964a73c084f9a82ef71f50bd29f10/FLAGa16928852 [2020-10-27 18:41:20,722 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:41:20,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label32.c [2020-10-27 18:41:20,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f999dd188/6b5964a73c084f9a82ef71f50bd29f10/FLAGa16928852 [2020-10-27 18:41:20,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f999dd188/6b5964a73c084f9a82ef71f50bd29f10 [2020-10-27 18:41:20,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:41:20,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:41:20,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:41:20,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:41:20,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:41:20,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:20" (1/1) ... [2020-10-27 18:41:20,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f78a2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:20, skipping insertion in model container [2020-10-27 18:41:20,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:20" (1/1) ... [2020-10-27 18:41:20,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:41:20,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:41:21,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:41:21,758 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:41:21,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:41:22,000 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:41:22,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22 WrapperNode [2020-10-27 18:41:22,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:41:22,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:41:22,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:41:22,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:41:22,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (1/1) ... [2020-10-27 18:41:22,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:41:22,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:41:22,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:41:22,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:41:22,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (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 18:41:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:41:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:41:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:41:22,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:41:22,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 18:41:22,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:41:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:41:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 18:41:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:41:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:41:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:41:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:41:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:41:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:41:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:41:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:41:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:41:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:41:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:41:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:41:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:41:24,672 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:41:24,673 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:41:24,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:24 BoogieIcfgContainer [2020-10-27 18:41:24,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:41:24,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:41:24,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:41:24,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:41:24,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:41:20" (1/3) ... [2020-10-27 18:41:24,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261b67ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:24, skipping insertion in model container [2020-10-27 18:41:24,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:22" (2/3) ... [2020-10-27 18:41:24,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261b67ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:24, skipping insertion in model container [2020-10-27 18:41:24,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:24" (3/3) ... [2020-10-27 18:41:24,686 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label32.c [2020-10-27 18:41:24,700 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:41:24,707 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:41:24,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:41:24,751 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:41:24,751 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:41:24,751 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:41:24,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:41:24,752 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:41:24,752 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:41:24,752 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:41:24,752 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:41:24,779 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-27 18:41:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 18:41:24,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:24,789 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] [2020-10-27 18:41:24,790 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:24,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:24,796 INFO L82 PathProgramCache]: Analyzing trace with hash 702483508, now seen corresponding path program 1 times [2020-10-27 18:41:24,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:24,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901268167] [2020-10-27 18:41:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 18:41:25,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-27 18:41:25,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:41:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:41:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 18:41:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:41:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:25,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 18:41:25,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:25,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:25,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:41:25,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,903 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 18:41:25,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901268167] [2020-10-27 18:41:25,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:41:25,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 18:41:25,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766787981] [2020-10-27 18:41:25,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:41:25,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:25,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:41:25,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:41:25,959 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-27 18:41:33,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:33,317 INFO L93 Difference]: Finished difference Result 1520 states and 2854 transitions. [2020-10-27 18:41:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:41:33,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-27 18:41:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:33,347 INFO L225 Difference]: With dead ends: 1520 [2020-10-27 18:41:33,347 INFO L226 Difference]: Without dead ends: 1039 [2020-10-27 18:41:33,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:41:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-27 18:41:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2020-10-27 18:41:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-27 18:41:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1643 transitions. [2020-10-27 18:41:33,542 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1643 transitions. Word has length 55 [2020-10-27 18:41:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:33,544 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1643 transitions. [2020-10-27 18:41:33,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:41:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1643 transitions. [2020-10-27 18:41:33,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-27 18:41:33,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:33,571 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, 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] [2020-10-27 18:41:33,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:41:33,572 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:33,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:33,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1673601324, now seen corresponding path program 1 times [2020-10-27 18:41:33,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:33,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93113430] [2020-10-27 18:41:33,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:34,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:34,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:38,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:38,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-27 18:41:38,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:38,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 18:41:38,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-27 18:41:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 18:41:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:41:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:38,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:38,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:38,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:39,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:39,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:41:39,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:39,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:41:39,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:39,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:39,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:41:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:39,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:39,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 18:41:39,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:39,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-27 18:41:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 18:41:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:41:39,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93113430] [2020-10-27 18:41:39,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:39,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:41:39,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550011153] [2020-10-27 18:41:39,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:41:39,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:39,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:41:39,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:41:39,446 INFO L87 Difference]: Start difference. First operand 1032 states and 1643 transitions. Second operand 5 states. [2020-10-27 18:41:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:42,897 INFO L93 Difference]: Finished difference Result 2079 states and 3312 transitions. [2020-10-27 18:41:42,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:41:42,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-27 18:41:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:42,915 INFO L225 Difference]: With dead ends: 2079 [2020-10-27 18:41:42,915 INFO L226 Difference]: Without dead ends: 1039 [2020-10-27 18:41:42,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 18:41:42,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-27 18:41:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2020-10-27 18:41:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-27 18:41:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1641 transitions. [2020-10-27 18:41:42,981 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1641 transitions. Word has length 237 [2020-10-27 18:41:42,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:42,985 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1641 transitions. [2020-10-27 18:41:42,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:41:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1641 transitions. [2020-10-27 18:41:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-27 18:41:42,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:42,991 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, 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] [2020-10-27 18:41:42,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:41:42,992 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash -283565998, now seen corresponding path program 1 times [2020-10-27 18:41:42,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:42,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651941037] [2020-10-27 18:41:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:43,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:43,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:44,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:48,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:48,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-27 18:41:48,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:48,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 18:41:48,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:48,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:48,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-27 18:41:48,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 18:41:48,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:41:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:48,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:48,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:48,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:48,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:48,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:48,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:48,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:41:48,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:48,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:41:48,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:48,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:48,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:48,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:48,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:41:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:48,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:48,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:48,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:48,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:48,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 18:41:48,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:41:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:41:48,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651941037] [2020-10-27 18:41:48,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:48,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:41:48,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606807203] [2020-10-27 18:41:48,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:41:48,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:48,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:41:48,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:41:48,586 INFO L87 Difference]: Start difference. First operand 1032 states and 1641 transitions. Second operand 5 states. [2020-10-27 18:41:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:53,733 INFO L93 Difference]: Finished difference Result 2749 states and 4487 transitions. [2020-10-27 18:41:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:41:53,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2020-10-27 18:41:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:53,751 INFO L225 Difference]: With dead ends: 2749 [2020-10-27 18:41:53,751 INFO L226 Difference]: Without dead ends: 1723 [2020-10-27 18:41:53,760 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 18:41:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-10-27 18:41:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1719. [2020-10-27 18:41:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2020-10-27 18:41:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2595 transitions. [2020-10-27 18:41:53,845 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2595 transitions. Word has length 240 [2020-10-27 18:41:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:53,847 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2595 transitions. [2020-10-27 18:41:53,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:41:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2595 transitions. [2020-10-27 18:41:53,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-27 18:41:53,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:53,855 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, 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] [2020-10-27 18:41:53,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:41:53,856 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash -694427172, now seen corresponding path program 1 times [2020-10-27 18:41:53,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:53,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159225828] [2020-10-27 18:41:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:53,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:54,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-27 18:41:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-27 18:41:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-27 18:41:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 18:41:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:59,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:59,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 18:41:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:41:59,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:41:59,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 18:41:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:41:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:41:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 18:41:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-27 18:41:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-27 18:41:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:41:59,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159225828] [2020-10-27 18:41:59,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:59,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:41:59,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047166590] [2020-10-27 18:41:59,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:41:59,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:59,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:41:59,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:41:59,846 INFO L87 Difference]: Start difference. First operand 1719 states and 2595 transitions. Second operand 5 states. [2020-10-27 18:42:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:03,087 INFO L93 Difference]: Finished difference Result 3449 states and 5216 transitions. [2020-10-27 18:42:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:42:03,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 305 [2020-10-27 18:42:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:03,101 INFO L225 Difference]: With dead ends: 3449 [2020-10-27 18:42:03,101 INFO L226 Difference]: Without dead ends: 1723 [2020-10-27 18:42:03,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 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 18:42:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-10-27 18:42:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1719. [2020-10-27 18:42:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2020-10-27 18:42:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2591 transitions. [2020-10-27 18:42:03,174 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2591 transitions. Word has length 305 [2020-10-27 18:42:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:03,175 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2591 transitions. [2020-10-27 18:42:03,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:42:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2591 transitions. [2020-10-27 18:42:03,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-27 18:42:03,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:03,183 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, 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] [2020-10-27 18:42:03,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:42:03,184 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:03,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:03,184 INFO L82 PathProgramCache]: Analyzing trace with hash -343594838, now seen corresponding path program 1 times [2020-10-27 18:42:03,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:03,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829933360] [2020-10-27 18:42:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:03,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:03,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:08,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-27 18:42:08,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:42:08,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 18:42:08,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:42:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 305 [2020-10-27 18:42:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 18:42:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:08,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:08,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:08,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:08,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:42:08,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:42:08,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:08,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:08,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:08,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:42:08,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:08,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 18:42:08,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:08,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:42:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:42:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:08,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-27 18:42:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:42:09,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829933360] [2020-10-27 18:42:09,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:09,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:42:09,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847377225] [2020-10-27 18:42:09,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:42:09,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:09,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:42:09,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:42:09,261 INFO L87 Difference]: Start difference. First operand 1719 states and 2591 transitions. Second operand 5 states. [2020-10-27 18:42:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:12,483 INFO L93 Difference]: Finished difference Result 3453 states and 5212 transitions. [2020-10-27 18:42:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:42:12,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2020-10-27 18:42:12,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:12,499 INFO L225 Difference]: With dead ends: 3453 [2020-10-27 18:42:12,499 INFO L226 Difference]: Without dead ends: 1723 [2020-10-27 18:42:12,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 18:42:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-10-27 18:42:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1719. [2020-10-27 18:42:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2020-10-27 18:42:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2587 transitions. [2020-10-27 18:42:12,556 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2587 transitions. Word has length 348 [2020-10-27 18:42:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:12,557 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2587 transitions. [2020-10-27 18:42:12,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:42:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2587 transitions. [2020-10-27 18:42:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-27 18:42:12,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:12,565 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, 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, 1, 1, 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 18:42:12,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:42:12,566 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash 44391475, now seen corresponding path program 1 times [2020-10-27 18:42:12,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:12,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682197896] [2020-10-27 18:42:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:13,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:15,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:17,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-27 18:42:17,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:42:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 18:42:17,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:17,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:42:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-27 18:42:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 18:42:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:17,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:17,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:42:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:17,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:17,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:17,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:17,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 18:42:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:17,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:42:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:17,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-27 18:42:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:18,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:18,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:18,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 18:42:18,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-27 18:42:18,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:42:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:18,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 18:42:18,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-27 18:42:18,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682197896] [2020-10-27 18:42:18,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:18,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:42:18,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800346283] [2020-10-27 18:42:18,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:42:18,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:18,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:42:18,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:42:18,465 INFO L87 Difference]: Start difference. First operand 1719 states and 2587 transitions. Second operand 7 states. [2020-10-27 18:42:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:24,232 INFO L93 Difference]: Finished difference Result 5216 states and 8018 transitions. [2020-10-27 18:42:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:42:24,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2020-10-27 18:42:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:24,258 INFO L225 Difference]: With dead ends: 5216 [2020-10-27 18:42:24,258 INFO L226 Difference]: Without dead ends: 3503 [2020-10-27 18:42:24,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:42:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2020-10-27 18:42:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 3472. [2020-10-27 18:42:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3472 states. [2020-10-27 18:42:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 4700 transitions. [2020-10-27 18:42:24,396 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 4700 transitions. Word has length 364 [2020-10-27 18:42:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:24,397 INFO L481 AbstractCegarLoop]: Abstraction has 3472 states and 4700 transitions. [2020-10-27 18:42:24,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:42:24,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 4700 transitions. [2020-10-27 18:42:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-27 18:42:24,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:24,413 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 18:42:24,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:42:24,414 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:24,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:24,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1336988507, now seen corresponding path program 1 times [2020-10-27 18:42:24,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:24,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989860387] [2020-10-27 18:42:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:24,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:26,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473 [2020-10-27 18:42:29,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:42:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 18:42:29,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-27 18:42:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 18:42:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:29,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:29,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:29,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:29,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:42:29,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 18:42:29,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:29,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:29,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:42:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:29,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:29,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 18:42:29,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:29,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 18:42:29,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:29,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-27 18:42:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:29,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:29,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:29,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-27 18:42:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 144 proven. 3 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-27 18:42:30,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989860387] [2020-10-27 18:42:30,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:30,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:42:30,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008759788] [2020-10-27 18:42:30,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:42:30,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:30,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:42:30,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:42:30,126 INFO L87 Difference]: Start difference. First operand 3472 states and 4700 transitions. Second operand 5 states. [2020-10-27 18:42:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:36,026 INFO L93 Difference]: Finished difference Result 9667 states and 13404 transitions. [2020-10-27 18:42:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:42:36,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 457 [2020-10-27 18:42:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:36,060 INFO L225 Difference]: With dead ends: 9667 [2020-10-27 18:42:36,060 INFO L226 Difference]: Without dead ends: 6201 [2020-10-27 18:42:36,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 18:42:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6201 states. [2020-10-27 18:42:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6201 to 6197. [2020-10-27 18:42:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6197 states. [2020-10-27 18:42:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6197 states to 6197 states and 8406 transitions. [2020-10-27 18:42:36,272 INFO L78 Accepts]: Start accepts. Automaton has 6197 states and 8406 transitions. Word has length 457 [2020-10-27 18:42:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:36,273 INFO L481 AbstractCegarLoop]: Abstraction has 6197 states and 8406 transitions. [2020-10-27 18:42:36,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:42:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6197 states and 8406 transitions. [2020-10-27 18:42:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-10-27 18:42:36,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:36,291 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:36,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:42:36,291 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:36,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:36,294 INFO L82 PathProgramCache]: Analyzing trace with hash 706887499, now seen corresponding path program 1 times [2020-10-27 18:42:36,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:36,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303388941] [2020-10-27 18:42:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:36,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:37,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:37,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:39,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-10-27 18:42:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:42:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-27 18:42:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:42:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-27 18:42:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 18:42:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:41,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:41,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:41,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:41,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:41,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:41,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:42:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:41,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:41,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:41,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 18:42:41,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 18:42:41,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:41,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:41,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:41,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 18:42:41,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:41,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 18:42:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:41,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:42,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:42,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 302 [2020-10-27 18:42:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:42:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:42,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:42:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 18:42:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 303 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-27 18:42:42,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303388941] [2020-10-27 18:42:42,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:42,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:42:42,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324899726] [2020-10-27 18:42:42,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:42:42,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:42:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:42:42,702 INFO L87 Difference]: Start difference. First operand 6197 states and 8406 transitions. Second operand 8 states. [2020-10-27 18:42:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:48,426 INFO L93 Difference]: Finished difference Result 12442 states and 16957 transitions. [2020-10-27 18:42:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:42:48,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 517 [2020-10-27 18:42:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:48,455 INFO L225 Difference]: With dead ends: 12442 [2020-10-27 18:42:48,456 INFO L226 Difference]: Without dead ends: 6251 [2020-10-27 18:42:48,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:42:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2020-10-27 18:42:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 4192. [2020-10-27 18:42:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4192 states. [2020-10-27 18:42:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4192 states to 4192 states and 5251 transitions. [2020-10-27 18:42:48,603 INFO L78 Accepts]: Start accepts. Automaton has 4192 states and 5251 transitions. Word has length 517 [2020-10-27 18:42:48,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:48,604 INFO L481 AbstractCegarLoop]: Abstraction has 4192 states and 5251 transitions. [2020-10-27 18:42:48,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:42:48,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4192 states and 5251 transitions. [2020-10-27 18:42:48,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2020-10-27 18:42:48,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:48,616 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, 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, 3, 3, 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, 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 18:42:48,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 18:42:48,617 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:48,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1131888091, now seen corresponding path program 1 times [2020-10-27 18:42:48,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:48,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299057] [2020-10-27 18:42:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:49,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 587 [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:42:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 227 [2020-10-27 18:42:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 18:42:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:53,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:53,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:53,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:53,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:42:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 18:42:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:42:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:54,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 18:42:54,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 18:42:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:54,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:54,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 18:42:54,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:54,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-27 18:42:54,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:42:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 302 [2020-10-27 18:42:54,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:54,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:42:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 18:42:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-27 18:42:54,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299057] [2020-10-27 18:42:54,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:54,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:42:54,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246694411] [2020-10-27 18:42:54,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:42:54,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:54,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:42:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:42:54,956 INFO L87 Difference]: Start difference. First operand 4192 states and 5251 transitions. Second operand 7 states. [2020-10-27 18:43:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:43:01,218 INFO L93 Difference]: Finished difference Result 10824 states and 13657 transitions. [2020-10-27 18:43:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:43:01,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 569 [2020-10-27 18:43:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:43:01,242 INFO L225 Difference]: With dead ends: 10824 [2020-10-27 18:43:01,242 INFO L226 Difference]: Without dead ends: 5579 [2020-10-27 18:43:01,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:43:01,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5579 states. [2020-10-27 18:43:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5579 to 5547. [2020-10-27 18:43:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5547 states. [2020-10-27 18:43:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 6108 transitions. [2020-10-27 18:43:01,389 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 6108 transitions. Word has length 569 [2020-10-27 18:43:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:43:01,390 INFO L481 AbstractCegarLoop]: Abstraction has 5547 states and 6108 transitions. [2020-10-27 18:43:01,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:43:01,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 6108 transitions. [2020-10-27 18:43:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-10-27 18:43:01,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:43:01,409 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:01,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 18:43:01,409 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:43:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:43:01,410 INFO L82 PathProgramCache]: Analyzing trace with hash -306461341, now seen corresponding path program 1 times [2020-10-27 18:43:01,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:43:01,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478066478] [2020-10-27 18:43:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:43:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:01,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:01,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:01,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:06,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 839 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 18:43:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:06,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:43:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:06,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:43:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:06,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:43:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 18:43:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:43:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:06,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-27 18:43:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:06,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:07,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 18:43:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:07,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-27 18:43:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:07,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:07,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:43:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:07,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:07,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:07,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 573 proven. 137 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2020-10-27 18:43:07,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478066478] [2020-10-27 18:43:07,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:43:07,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:43:07,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634185429] [2020-10-27 18:43:07,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:43:07,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:43:07,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:43:07,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:43:07,930 INFO L87 Difference]: Start difference. First operand 5547 states and 6108 transitions. Second operand 8 states. [2020-10-27 18:43:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:43:13,896 INFO L93 Difference]: Finished difference Result 13120 states and 14425 transitions. [2020-10-27 18:43:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:43:13,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 817 [2020-10-27 18:43:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:43:13,925 INFO L225 Difference]: With dead ends: 13120 [2020-10-27 18:43:13,925 INFO L226 Difference]: Without dead ends: 6554 [2020-10-27 18:43:13,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:43:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6554 states. [2020-10-27 18:43:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6554 to 5537. [2020-10-27 18:43:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5537 states. [2020-10-27 18:43:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5537 states to 5537 states and 5970 transitions. [2020-10-27 18:43:14,082 INFO L78 Accepts]: Start accepts. Automaton has 5537 states and 5970 transitions. Word has length 817 [2020-10-27 18:43:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:43:14,083 INFO L481 AbstractCegarLoop]: Abstraction has 5537 states and 5970 transitions. [2020-10-27 18:43:14,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:43:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5537 states and 5970 transitions. [2020-10-27 18:43:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2020-10-27 18:43:14,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:43:14,104 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:43:14,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 18:43:14,104 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:43:14,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:43:14,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1714232998, now seen corresponding path program 1 times [2020-10-27 18:43:14,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:43:14,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395538582] [2020-10-27 18:43:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:43:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:14,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:17,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:19,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 847 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 227 [2020-10-27 18:43:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-27 18:43:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:19,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:43:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:19,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:19,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:43:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:19,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:43:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:19,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 18:43:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 18:43:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:19,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:43:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-27 18:43:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:20,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-27 18:43:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:20,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:20,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 410 proven. 272 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2020-10-27 18:43:20,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395538582] [2020-10-27 18:43:20,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:43:20,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:43:20,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473788415] [2020-10-27 18:43:20,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:43:20,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:43:20,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:43:20,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:43:20,987 INFO L87 Difference]: Start difference. First operand 5537 states and 5970 transitions. Second operand 7 states. [2020-10-27 18:43:25,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:43:25,213 INFO L93 Difference]: Finished difference Result 11766 states and 12700 transitions. [2020-10-27 18:43:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:43:25,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 829 [2020-10-27 18:43:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:43:25,237 INFO L225 Difference]: With dead ends: 11766 [2020-10-27 18:43:25,237 INFO L226 Difference]: Without dead ends: 6235 [2020-10-27 18:43:25,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:43:25,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2020-10-27 18:43:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 6221. [2020-10-27 18:43:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6221 states. [2020-10-27 18:43:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 6672 transitions. [2020-10-27 18:43:25,378 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 6672 transitions. Word has length 829 [2020-10-27 18:43:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:43:25,379 INFO L481 AbstractCegarLoop]: Abstraction has 6221 states and 6672 transitions. [2020-10-27 18:43:25,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:43:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 6672 transitions. [2020-10-27 18:43:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2020-10-27 18:43:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:43:25,402 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:43:25,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 18:43:25,403 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:43:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:43:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash -594602684, now seen corresponding path program 1 times [2020-10-27 18:43:25,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:43:25,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294881085] [2020-10-27 18:43:25,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:43:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:25,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:25,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 876 [2020-10-27 18:43:30,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-27 18:43:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:30,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:43:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:30,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:43:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:30,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:30,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:30,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:43:30,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:30,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:43:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:30,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:30,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:43:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 18:43:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-27 18:43:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:31,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:31,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-27 18:43:31,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:31,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-10-27 18:43:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:31,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:31,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:31,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-27 18:43:31,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 18:43:31,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-27 18:43:31,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:31,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 439 proven. 272 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-10-27 18:43:32,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294881085] [2020-10-27 18:43:32,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:43:32,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:43:32,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251876719] [2020-10-27 18:43:32,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:43:32,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:43:32,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:43:32,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:43:32,233 INFO L87 Difference]: Start difference. First operand 6221 states and 6672 transitions. Second operand 8 states. [2020-10-27 18:43:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:43:40,445 INFO L93 Difference]: Finished difference Result 16514 states and 17942 transitions. [2020-10-27 18:43:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 18:43:40,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 858 [2020-10-27 18:43:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:43:40,477 INFO L225 Difference]: With dead ends: 16514 [2020-10-27 18:43:40,477 INFO L226 Difference]: Without dead ends: 10299 [2020-10-27 18:43:40,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-27 18:43:40,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2020-10-27 18:43:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 9621. [2020-10-27 18:43:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9621 states. [2020-10-27 18:43:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9621 states to 9621 states and 10177 transitions. [2020-10-27 18:43:40,695 INFO L78 Accepts]: Start accepts. Automaton has 9621 states and 10177 transitions. Word has length 858 [2020-10-27 18:43:40,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:43:40,696 INFO L481 AbstractCegarLoop]: Abstraction has 9621 states and 10177 transitions. [2020-10-27 18:43:40,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:43:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 9621 states and 10177 transitions. [2020-10-27 18:43:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-10-27 18:43:40,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:43:40,729 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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 18:43:40,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 18:43:40,730 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:43:40,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:43:40,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1561383984, now seen corresponding path program 1 times [2020-10-27 18:43:40,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:43:40,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672349817] [2020-10-27 18:43:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:43:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:41,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1089 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5185 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 512 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-27 18:43:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:43:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:43:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:46,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:43:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-27 18:43:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-27 18:43:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:43:46,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:43:46,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:46,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-27 18:43:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:46,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:46,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:43:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-27 18:43:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:47,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2020-10-27 18:43:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:47,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:47,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 18:43:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 18:43:47,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-27 18:43:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:47,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:43:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:47,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:47,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 797 proven. 214 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2020-10-27 18:43:48,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672349817] [2020-10-27 18:43:48,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:43:48,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:43:48,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112316750] [2020-10-27 18:43:48,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:43:48,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:43:48,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:43:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:43:48,434 INFO L87 Difference]: Start difference. First operand 9621 states and 10177 transitions. Second operand 7 states. [2020-10-27 18:43:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:43:53,185 INFO L93 Difference]: Finished difference Result 22309 states and 23762 transitions. [2020-10-27 18:43:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:43:53,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1065 [2020-10-27 18:43:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:43:53,237 INFO L225 Difference]: With dead ends: 22309 [2020-10-27 18:43:53,237 INFO L226 Difference]: Without dead ends: 12694 [2020-10-27 18:43:53,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:43:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12694 states. [2020-10-27 18:43:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12694 to 12684. [2020-10-27 18:43:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12684 states. [2020-10-27 18:43:53,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 13427 transitions. [2020-10-27 18:43:53,511 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 13427 transitions. Word has length 1065 [2020-10-27 18:43:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:43:53,512 INFO L481 AbstractCegarLoop]: Abstraction has 12684 states and 13427 transitions. [2020-10-27 18:43:53,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:43:53,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 13427 transitions. [2020-10-27 18:43:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2020-10-27 18:43:53,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:43:53,554 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 18:43:53,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 18:43:53,554 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:43:53,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:43:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1978500798, now seen corresponding path program 1 times [2020-10-27 18:43:53,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:43:53,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774309283] [2020-10-27 18:43:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:43:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:53,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:53,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:54,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:54,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:58,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1202 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-27 18:43:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-27 18:43:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:43:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:59,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:43:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 18:43:59,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 18:43:59,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:59,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 18:43:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 18:43:59,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 18:43:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-27 18:43:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:43:59,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:43:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-27 18:43:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 18:43:59,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-27 18:43:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:43:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:43:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 18:43:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-27 18:43:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:43:59,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 847 [2020-10-27 18:43:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:43:59,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-27 18:44:00,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 18:44:00,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-27 18:44:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 837 proven. 164 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2020-10-27 18:44:00,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774309283] [2020-10-27 18:44:00,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:44:00,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:44:00,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433860215] [2020-10-27 18:44:00,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:44:00,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:44:00,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:44:00,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:44:00,928 INFO L87 Difference]: Start difference. First operand 12684 states and 13427 transitions. Second operand 7 states. [2020-10-27 18:44:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:44:05,653 INFO L93 Difference]: Finished difference Result 26389 states and 28022 transitions. [2020-10-27 18:44:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:44:05,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1180 [2020-10-27 18:44:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:44:05,694 INFO L225 Difference]: With dead ends: 26389 [2020-10-27 18:44:05,695 INFO L226 Difference]: Without dead ends: 13711 [2020-10-27 18:44:05,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:44:05,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13711 states. [2020-10-27 18:44:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13711 to 13693. [2020-10-27 18:44:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13693 states. [2020-10-27 18:44:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 14471 transitions. [2020-10-27 18:44:05,963 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 14471 transitions. Word has length 1180 [2020-10-27 18:44:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:44:05,964 INFO L481 AbstractCegarLoop]: Abstraction has 13693 states and 14471 transitions. [2020-10-27 18:44:05,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:44:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 14471 transitions. [2020-10-27 18:44:06,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1435 [2020-10-27 18:44:06,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:44:06,014 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 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 18:44:06,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 18:44:06,014 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:44:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:44:06,015 INFO L82 PathProgramCache]: Analyzing trace with hash -183330115, now seen corresponding path program 1 times [2020-10-27 18:44:06,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:44:06,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109611307] [2020-10-27 18:44:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:44:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:06,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:07,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:11,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:11,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1458 [2020-10-27 18:44:11,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5161 [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 617 [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 18:44:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:44:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:11,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:11,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:11,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:44:11,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:44:11,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:11,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:44:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:11,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:11,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:11,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 18:44:11,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 18:44:11,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:11,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:11,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 18:44:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:11,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 18:44:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 18:44:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:11,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-27 18:44:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:11,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:12,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:44:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:12,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-27 18:44:12,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-27 18:44:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:12,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:12,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 18:44:12,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:12,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-27 18:44:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:12,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:12,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:12,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-27 18:44:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:13,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:13,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1101 [2020-10-27 18:44:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:13,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3456 backedges. 579 proven. 206 refuted. 0 times theorem prover too weak. 2671 trivial. 0 not checked. [2020-10-27 18:44:14,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109611307] [2020-10-27 18:44:14,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:44:14,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:44:14,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810915633] [2020-10-27 18:44:14,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:44:14,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:44:14,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:44:14,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:44:14,596 INFO L87 Difference]: Start difference. First operand 13693 states and 14471 transitions. Second operand 7 states. [2020-10-27 18:44:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:44:19,163 INFO L93 Difference]: Finished difference Result 28746 states and 30390 transitions. [2020-10-27 18:44:19,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 18:44:19,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1434 [2020-10-27 18:44:19,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:44:19,195 INFO L225 Difference]: With dead ends: 28746 [2020-10-27 18:44:19,196 INFO L226 Difference]: Without dead ends: 15059 [2020-10-27 18:44:19,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:44:19,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15059 states. [2020-10-27 18:44:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15059 to 14373. [2020-10-27 18:44:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14373 states. [2020-10-27 18:44:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14373 states to 14373 states and 15188 transitions. [2020-10-27 18:44:19,480 INFO L78 Accepts]: Start accepts. Automaton has 14373 states and 15188 transitions. Word has length 1434 [2020-10-27 18:44:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:44:19,481 INFO L481 AbstractCegarLoop]: Abstraction has 14373 states and 15188 transitions. [2020-10-27 18:44:19,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:44:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 14373 states and 15188 transitions. [2020-10-27 18:44:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2020-10-27 18:44:19,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:44:19,522 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 18:44:19,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 18:44:19,522 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:44:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:44:19,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1792963028, now seen corresponding path program 1 times [2020-10-27 18:44:19,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:44:19,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795546802] [2020-10-27 18:44:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:44:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:19,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:20,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:20,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:24,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:24,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1461 [2020-10-27 18:44:24,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 884 [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-27 18:44:24,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:24,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:44:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:25,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:44:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:25,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:25,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 18:44:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:25,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:25,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-27 18:44:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:25,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:25,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:25,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:25,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-27 18:44:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:25,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-27 18:44:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:25,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 876 [2020-10-27 18:44:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:26,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:26,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-27 18:44:26,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:26,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 18:44:26,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:44:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-27 18:44:26,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:26,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1091 [2020-10-27 18:44:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:26,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 299 [2020-10-27 18:44:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:44:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:26,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:26,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3185 backedges. 1061 proven. 214 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2020-10-27 18:44:29,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795546802] [2020-10-27 18:44:29,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:44:29,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:44:29,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194487100] [2020-10-27 18:44:29,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:44:29,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:44:29,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:44:29,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:44:29,165 INFO L87 Difference]: Start difference. First operand 14373 states and 15188 transitions. Second operand 7 states. [2020-10-27 18:44:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:44:34,185 INFO L93 Difference]: Finished difference Result 29097 states and 30759 transitions. [2020-10-27 18:44:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:44:34,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1437 [2020-10-27 18:44:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:44:34,219 INFO L225 Difference]: With dead ends: 29097 [2020-10-27 18:44:34,219 INFO L226 Difference]: Without dead ends: 14730 [2020-10-27 18:44:34,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:44:34,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14730 states. [2020-10-27 18:44:34,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14730 to 14718. [2020-10-27 18:44:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14718 states. [2020-10-27 18:44:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14718 states to 14718 states and 15542 transitions. [2020-10-27 18:44:34,530 INFO L78 Accepts]: Start accepts. Automaton has 14718 states and 15542 transitions. Word has length 1437 [2020-10-27 18:44:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:44:34,532 INFO L481 AbstractCegarLoop]: Abstraction has 14718 states and 15542 transitions. [2020-10-27 18:44:34,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:44:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 14718 states and 15542 transitions. [2020-10-27 18:44:34,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1547 [2020-10-27 18:44:34,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:44:34,573 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 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 18:44:34,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 18:44:34,574 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:44:34,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:44:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 83648390, now seen corresponding path program 1 times [2020-10-27 18:44:34,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:44:34,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144200401] [2020-10-27 18:44:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:44:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:35,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:39,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1572 [2020-10-27 18:44:39,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 731 [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 18:44:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:44:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:39,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:44:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:40,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 18:44:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-27 18:44:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:40,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-27 18:44:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:40,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-27 18:44:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:44:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:44:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:44:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:40,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-27 18:44:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 18:44:40,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 18:44:40,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:44:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:44:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 18:44:40,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:40,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-27 18:44:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-27 18:44:40,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 18:44:40,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-27 18:44:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 18:44:40,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1048 [2020-10-27 18:44:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:40,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-27 18:44:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:44:41,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1213 [2020-10-27 18:44:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:44:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:44:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:44:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-27 18:44:41,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:44:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0