/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/recursive-simple/fibo_2calls_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:21:05,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:21:05,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:21:05,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:21:05,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:21:05,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:21:05,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:21:05,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:21:05,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:21:05,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:21:05,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:21:05,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:21:05,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:21:05,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:21:05,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:21:05,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:21:05,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:21:05,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:21:05,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:21:05,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:21:05,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:21:05,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:21:05,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:21:05,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:21:05,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:21:05,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:21:05,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:21:05,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:21:05,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:21:05,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:21:05,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:21:05,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:21:05,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:21:05,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:21:05,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:21:05,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:21:05,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:21:05,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:21:05,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:21:05,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:21:05,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:21:05,800 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 [2020-10-28 17:21:05,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:21:05,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:21:05,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:21:05,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:21:05,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:21:05,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:21:05,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:21:05,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:21:05,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:21:05,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:21:05,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:21:05,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:21:05,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:21:05,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:21:05,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:21:05,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:21:05,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:21:05,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:21:05,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:21:05,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:21:05,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:21:05,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:21:05,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:21:05,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:21:05,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:21:05,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:21:05,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:21:05,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:21:05,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:21:05,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:21:06,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:21:06,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:21:06,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:21:06,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:21:06,332 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:21:06,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-10-28 17:21:06,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf91abbff/a6051e9425d34e52a730729a2943785b/FLAGd04bd747e [2020-10-28 17:21:06,958 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:21:06,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-10-28 17:21:06,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf91abbff/a6051e9425d34e52a730729a2943785b/FLAGd04bd747e [2020-10-28 17:21:07,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf91abbff/a6051e9425d34e52a730729a2943785b [2020-10-28 17:21:07,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:21:07,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:21:07,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:21:07,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:21:07,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:21:07,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3328c684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07, skipping insertion in model container [2020-10-28 17:21:07,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:21:07,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:21:07,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:21:07,548 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:21:07,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:21:07,585 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:21:07,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07 WrapperNode [2020-10-28 17:21:07,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:21:07,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:21:07,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:21:07,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:21:07,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (1/1) ... [2020-10-28 17:21:07,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:21:07,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:21:07,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:21:07,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:21:07,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (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 [2020-10-28 17:21:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:21:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:21:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:21:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-28 17:21:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-28 17:21:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:21:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 17:21:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:21:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:21:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:21:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:21:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-28 17:21:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-28 17:21:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:21:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:21:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:21:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:21:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:21:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:21:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:21:08,177 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:21:08,177 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 17:21:08,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:21:08 BoogieIcfgContainer [2020-10-28 17:21:08,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:21:08,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:21:08,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:21:08,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:21:08,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:21:07" (1/3) ... [2020-10-28 17:21:08,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55224ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:21:08, skipping insertion in model container [2020-10-28 17:21:08,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:21:07" (2/3) ... [2020-10-28 17:21:08,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55224ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:21:08, skipping insertion in model container [2020-10-28 17:21:08,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:21:08" (3/3) ... [2020-10-28 17:21:08,191 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2020-10-28 17:21:08,242 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:21:08,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:21:08,291 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:21:08,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:21:08,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:21:08,336 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:21:08,336 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:21:08,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:21:08,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:21:08,337 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:21:08,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:21:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-28 17:21:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-28 17:21:08,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:08,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:21:08,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:08,370 INFO L82 PathProgramCache]: Analyzing trace with hash 219823047, now seen corresponding path program 1 times [2020-10-28 17:21:08,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:08,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202360258] [2020-10-28 17:21:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:09,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:09,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:21:09,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:21:09,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-28 17:21:09,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:09,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:09,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:21:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:21:09,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:09,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:09,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:21:09,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:09,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:09,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:09,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:09,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:09,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:09,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:21:09,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:09,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:21:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:09,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:09,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:21:09,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202360258] [2020-10-28 17:21:09,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:21:09,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:21:09,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819391128] [2020-10-28 17:21:09,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:21:09,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:09,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:21:09,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:21:09,406 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-10-28 17:21:09,768 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-28 17:21:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:10,086 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2020-10-28 17:21:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:21:10,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-28 17:21:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:10,098 INFO L225 Difference]: With dead ends: 50 [2020-10-28 17:21:10,099 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 17:21:10,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:21:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 17:21:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 17:21:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 17:21:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-28 17:21:10,155 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2020-10-28 17:21:10,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:10,156 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-28 17:21:10,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:21:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-28 17:21:10,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 17:21:10,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:10,159 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 17:21:10,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:21:10,160 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:10,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2083135015, now seen corresponding path program 1 times [2020-10-28 17:21:10,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:10,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815875278] [2020-10-28 17:21:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:10,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:10,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:10,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:12,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:12,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 17:21:12,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:21:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2666 [2020-10-28 17:21:12,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:12,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:21:12,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 17:21:12,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:12,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:12,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:12,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:12,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:12,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:21:12,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:12,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:12,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:13,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:13,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:13,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:13,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:21:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-28 17:21:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:13,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:21:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:13,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:13,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:13,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:13,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:13,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:13,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:21:13,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:13,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:13,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:13,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:21:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:13,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:13,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:13,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:13,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:13,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:13,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:13,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:13,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:13,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:13,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 17:21:13,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815875278] [2020-10-28 17:21:13,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:13,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:21:13,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128573370] [2020-10-28 17:21:13,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:21:13,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:13,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:21:13,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:21:13,439 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 8 states. [2020-10-28 17:21:14,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:14,072 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2020-10-28 17:21:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:21:14,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-28 17:21:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:14,076 INFO L225 Difference]: With dead ends: 44 [2020-10-28 17:21:14,076 INFO L226 Difference]: Without dead ends: 39 [2020-10-28 17:21:14,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:21:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-28 17:21:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-10-28 17:21:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-28 17:21:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-28 17:21:14,091 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 28 [2020-10-28 17:21:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:14,091 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-28 17:21:14,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:21:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-28 17:21:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 17:21:14,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:14,094 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:21:14,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:21:14,094 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash 752879968, now seen corresponding path program 1 times [2020-10-28 17:21:14,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:14,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117515625] [2020-10-28 17:21:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:14,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:14,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:15,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:21:15,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1098 [2020-10-28 17:21:15,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:15,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:21:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:15,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:15,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:15,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:15,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:21:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:15,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:21:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:21:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:21:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-28 17:21:15,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:15,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:21:15,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:15,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:15,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:15,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:15,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:15,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:21:15,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:15,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:15,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:15,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:15,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:21:15,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:15,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:15,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:15,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:15,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:15,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:15,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:15,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 17:21:15,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117515625] [2020-10-28 17:21:15,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:15,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:21:15,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627054046] [2020-10-28 17:21:15,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:21:15,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:15,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:21:15,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:21:15,499 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 8 states. [2020-10-28 17:21:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:16,019 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2020-10-28 17:21:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:21:16,020 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-10-28 17:21:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:16,022 INFO L225 Difference]: With dead ends: 51 [2020-10-28 17:21:16,022 INFO L226 Difference]: Without dead ends: 46 [2020-10-28 17:21:16,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:21:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-28 17:21:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2020-10-28 17:21:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-28 17:21:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-28 17:21:16,036 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 29 [2020-10-28 17:21:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:16,036 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-28 17:21:16,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:21:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-28 17:21:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 17:21:16,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:16,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-28 17:21:16,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:21:16,039 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2070859795, now seen corresponding path program 1 times [2020-10-28 17:21:16,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:16,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102364459] [2020-10-28 17:21:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:16,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:16,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:18,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:21,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:21:21,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:21:21,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:21:21,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:21,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:21:21,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:21,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:21:21,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:21,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:21,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:21,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:22,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:21:22,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:21:22,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-10-28 17:21:22,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:22,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:21:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 17:21:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:21:22,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:21:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 17:21:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:22,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:21:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:21:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:22,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:22,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:21:22,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:22,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:22,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:21:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:22,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:22,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:22,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:21:22,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:22,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:22,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:21:22,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:21:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:22,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:22,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:22,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 17:21:23,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102364459] [2020-10-28 17:21:23,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:23,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:21:23,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591765464] [2020-10-28 17:21:23,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:21:23,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:23,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:21:23,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:21:23,004 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 10 states. [2020-10-28 17:21:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:23,760 INFO L93 Difference]: Finished difference Result 91 states and 144 transitions. [2020-10-28 17:21:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:21:23,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-28 17:21:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:23,766 INFO L225 Difference]: With dead ends: 91 [2020-10-28 17:21:23,766 INFO L226 Difference]: Without dead ends: 61 [2020-10-28 17:21:23,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:21:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-28 17:21:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2020-10-28 17:21:23,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-28 17:21:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 80 transitions. [2020-10-28 17:21:23,803 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 80 transitions. Word has length 41 [2020-10-28 17:21:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:23,803 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 80 transitions. [2020-10-28 17:21:23,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:21:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 80 transitions. [2020-10-28 17:21:23,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-28 17:21:23,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:23,813 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-10-28 17:21:23,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:21:23,813 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:23,813 INFO L82 PathProgramCache]: Analyzing trace with hash 501472485, now seen corresponding path program 1 times [2020-10-28 17:21:23,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:23,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964638190] [2020-10-28 17:21:23,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:23,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:23,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:23,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:24,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:28,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 17:21:28,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 17:21:28,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:21:28,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:28,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 17:21:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:21:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:28,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:28,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:28,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:29,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 17:21:33,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:21:33,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4556 [2020-10-28 17:21:33,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:21:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:21:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:21:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:21:33,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:33,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:21:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:33,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:33,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:33,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:21:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:21:33,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:21:33,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:21:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:33,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:33,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:33,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:33,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:33,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:21:33,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:33,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:33,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:33,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:33,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:21:33,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-28 17:21:33,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964638190] [2020-10-28 17:21:33,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:33,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:21:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063654120] [2020-10-28 17:21:33,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:21:33,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:21:33,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:21:33,857 INFO L87 Difference]: Start difference. First operand 56 states and 80 transitions. Second operand 12 states. [2020-10-28 17:21:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:34,922 INFO L93 Difference]: Finished difference Result 111 states and 181 transitions. [2020-10-28 17:21:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:21:34,923 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-28 17:21:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:34,932 INFO L225 Difference]: With dead ends: 111 [2020-10-28 17:21:34,932 INFO L226 Difference]: Without dead ends: 58 [2020-10-28 17:21:34,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:21:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-28 17:21:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2020-10-28 17:21:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-28 17:21:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-10-28 17:21:34,964 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 56 [2020-10-28 17:21:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:34,964 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-10-28 17:21:34,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:21:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-10-28 17:21:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 17:21:34,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:34,968 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2020-10-28 17:21:34,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:21:34,969 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:34,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:34,969 INFO L82 PathProgramCache]: Analyzing trace with hash 921008892, now seen corresponding path program 2 times [2020-10-28 17:21:34,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:34,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242783293] [2020-10-28 17:21:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:35,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:35,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:35,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:35,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:36,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:36,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:39,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:40,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 17:21:40,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 17:21:40,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:21:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:40,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:40,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:40,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:40,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3562 [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:21:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 17:21:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:21:43,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:43,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:21:43,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:21:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:21:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:21:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:21:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:43,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:43,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:21:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:43,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:43,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-28 17:21:43,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242783293] [2020-10-28 17:21:43,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:43,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:21:43,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628232822] [2020-10-28 17:21:43,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:21:43,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:43,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:21:43,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:21:43,891 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 10 states. [2020-10-28 17:21:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:44,617 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2020-10-28 17:21:44,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:21:44,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-28 17:21:44,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:44,620 INFO L225 Difference]: With dead ends: 112 [2020-10-28 17:21:44,620 INFO L226 Difference]: Without dead ends: 56 [2020-10-28 17:21:44,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:21:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-28 17:21:44,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2020-10-28 17:21:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-28 17:21:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-10-28 17:21:44,634 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 57 [2020-10-28 17:21:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:44,635 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-10-28 17:21:44,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:21:44,635 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-10-28 17:21:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 17:21:44,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:44,637 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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] [2020-10-28 17:21:44,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:21:44,637 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:44,638 INFO L82 PathProgramCache]: Analyzing trace with hash -58455699, now seen corresponding path program 1 times [2020-10-28 17:21:44,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:44,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414116161] [2020-10-28 17:21:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:44,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:44,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:44,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:45,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:45,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:46,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:46,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:46,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:46,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 17:21:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:21:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:49,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:49,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:21:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:49,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:54,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 17:21:54,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:21:54,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:54,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:21:54,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 17:21:54,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:54,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:21:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:54,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:54,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:54,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:54,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:54,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:21:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:54,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:54,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:54,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:21:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:54,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:21:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:54,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:54,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:54,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:21:54,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:21:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:21:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:55,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:55,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:55,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:55,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:55,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:55,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:21:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:55,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:55,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:21:55,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:21:55,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:21:55,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:21:55,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:21:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-28 17:21:55,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414116161] [2020-10-28 17:21:55,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:21:55,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:21:55,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903698247] [2020-10-28 17:21:55,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:21:55,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:21:55,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:21:55,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:21:55,023 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 10 states. [2020-10-28 17:21:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:21:55,569 INFO L93 Difference]: Finished difference Result 84 states and 125 transitions. [2020-10-28 17:21:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:21:55,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-28 17:21:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:21:55,573 INFO L225 Difference]: With dead ends: 84 [2020-10-28 17:21:55,574 INFO L226 Difference]: Without dead ends: 79 [2020-10-28 17:21:55,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:21:55,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-28 17:21:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-10-28 17:21:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-28 17:21:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 98 transitions. [2020-10-28 17:21:55,591 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 98 transitions. Word has length 58 [2020-10-28 17:21:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:21:55,592 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 98 transitions. [2020-10-28 17:21:55,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:21:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 98 transitions. [2020-10-28 17:21:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 17:21:55,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:21:55,593 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:21:55,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:21:55,594 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:21:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:21:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash 909356298, now seen corresponding path program 1 times [2020-10-28 17:21:55,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:21:55,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734780218] [2020-10-28 17:21:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:21:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:21:55,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:55,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:55,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:55,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:56,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:58,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:58,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:58,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:21:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:00,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:22:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 17:22:00,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:22:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:00,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:00,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:00,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:22:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:00,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:00,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:02,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:02,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:02,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:02,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 17:22:05,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-28 17:22:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 17:22:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:05,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:05,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 17:22:05,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:22:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 17:22:05,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:05,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:05,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:05,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:22:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:22:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:22:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:05,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:05,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:22:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:05,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:05,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:05,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:05,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:22:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:05,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:05,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:05,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:22:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 17:22:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:22:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:06,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:06,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:06,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:06,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:22:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:06,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:06,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 23 proven. 27 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-28 17:22:06,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734780218] [2020-10-28 17:22:06,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:22:06,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:22:06,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478506694] [2020-10-28 17:22:06,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:22:06,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:22:06,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:22:06,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:22:06,061 INFO L87 Difference]: Start difference. First operand 67 states and 98 transitions. Second operand 10 states. [2020-10-28 17:22:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:22:06,712 INFO L93 Difference]: Finished difference Result 152 states and 255 transitions. [2020-10-28 17:22:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 17:22:06,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-10-28 17:22:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:22:06,714 INFO L225 Difference]: With dead ends: 152 [2020-10-28 17:22:06,715 INFO L226 Difference]: Without dead ends: 92 [2020-10-28 17:22:06,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:22:06,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-28 17:22:06,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2020-10-28 17:22:06,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:22:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2020-10-28 17:22:06,745 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 70 [2020-10-28 17:22:06,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:22:06,746 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2020-10-28 17:22:06,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:22:06,746 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2020-10-28 17:22:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 17:22:06,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:22:06,748 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:22:06,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:22:06,749 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:22:06,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:22:06,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1562902855, now seen corresponding path program 1 times [2020-10-28 17:22:06,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:22:06,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354437585] [2020-10-28 17:22:06,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:22:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:06,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:06,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:07,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:11,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:22:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 17:22:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:22:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:22:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:11,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:11,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:22:11,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:11,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:22:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:16,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:16,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 17:22:16,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 17:22:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:22:16,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:16,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:22:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 17:22:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:17,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:22:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:17,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:17,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:17,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:17,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:17,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:22:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:17,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:22:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:17,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:22:17,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:17,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 17:22:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:17,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:17,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:22:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 17:22:18,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:18,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:18,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:22:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:18,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:18,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:22:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:22:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:18,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:18,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:22:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:18,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:18,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:22:18,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 55 proven. 34 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-28 17:22:18,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354437585] [2020-10-28 17:22:18,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:22:18,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:22:18,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983286087] [2020-10-28 17:22:18,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:22:18,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:22:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:22:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:22:18,203 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand 14 states. [2020-10-28 17:22:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:22:19,506 INFO L93 Difference]: Finished difference Result 230 states and 470 transitions. [2020-10-28 17:22:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:22:19,508 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-10-28 17:22:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:22:19,511 INFO L225 Difference]: With dead ends: 230 [2020-10-28 17:22:19,511 INFO L226 Difference]: Without dead ends: 144 [2020-10-28 17:22:19,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:22:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-28 17:22:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2020-10-28 17:22:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-28 17:22:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 234 transitions. [2020-10-28 17:22:19,554 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 234 transitions. Word has length 84 [2020-10-28 17:22:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:22:19,555 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 234 transitions. [2020-10-28 17:22:19,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:22:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 234 transitions. [2020-10-28 17:22:19,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-28 17:22:19,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:22:19,558 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:22:19,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:22:19,559 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:22:19,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:22:19,559 INFO L82 PathProgramCache]: Analyzing trace with hash 340272462, now seen corresponding path program 1 times [2020-10-28 17:22:19,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:22:19,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573845037] [2020-10-28 17:22:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:22:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:19,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:19,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:20,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:21,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:23,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 17:22:24,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:24,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:22:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:24,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:22:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:24,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:24,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:25,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:25,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:25,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:28,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:22:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:29,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:29,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:29,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:30,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4803 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:34,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:22:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:34,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:22:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:34,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:34,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:22:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:34,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2165 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:22:36,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:22:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:22:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:22:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:22:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:22:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:22:36,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:36,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:36,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 91 proven. 17 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-28 17:22:36,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573845037] [2020-10-28 17:22:36,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:22:36,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:22:36,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293938999] [2020-10-28 17:22:36,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:22:36,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:22:36,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:22:36,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:22:36,893 INFO L87 Difference]: Start difference. First operand 133 states and 234 transitions. Second operand 11 states. [2020-10-28 17:22:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:22:37,749 INFO L93 Difference]: Finished difference Result 260 states and 489 transitions. [2020-10-28 17:22:37,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:22:37,750 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-10-28 17:22:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:22:37,753 INFO L225 Difference]: With dead ends: 260 [2020-10-28 17:22:37,754 INFO L226 Difference]: Without dead ends: 133 [2020-10-28 17:22:37,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:22:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-28 17:22:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 123. [2020-10-28 17:22:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-28 17:22:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 198 transitions. [2020-10-28 17:22:37,787 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 198 transitions. Word has length 107 [2020-10-28 17:22:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:22:37,787 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 198 transitions. [2020-10-28 17:22:37,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:22:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 198 transitions. [2020-10-28 17:22:37,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-28 17:22:37,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:22:37,790 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:22:37,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:22:37,790 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:22:37,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:22:37,792 INFO L82 PathProgramCache]: Analyzing trace with hash -784051631, now seen corresponding path program 1 times [2020-10-28 17:22:37,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:22:37,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183118943] [2020-10-28 17:22:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:22:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:37,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:39,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:39,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:42,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:22:42,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:42,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:22:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:42,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:42,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:22:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:42,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:43,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:44,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:45,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:47,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 17:22:47,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 29 [2020-10-28 17:22:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 17:22:47,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:47,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:22:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:22:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:47,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:48,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:49,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:22:49,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1804 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:22:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:49,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:49,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:49,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:22:49,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:49,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:22:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:49,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:22:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:49,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:49,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:49,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:49,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:22:49,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:49,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:49,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:22:49,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:49,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:22:49,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:49,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:22:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:49,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:49,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:49,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:22:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:50,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:50,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:50,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:50,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:22:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:50,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:22:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:50,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:51,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:51,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:22:51,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 17:22:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1739 [2020-10-28 17:22:51,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:51,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 17:22:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:51,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:51,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:22:52,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:22:52,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:22:52,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:22:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:22:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:52,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:52,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:22:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:22:52,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:52,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:52,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 17:22:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:52,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:22:52,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 36 proven. 92 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-28 17:22:52,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183118943] [2020-10-28 17:22:52,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:22:52,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:22:52,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224270144] [2020-10-28 17:22:52,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:22:52,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:22:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:22:52,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:22:52,072 INFO L87 Difference]: Start difference. First operand 123 states and 198 transitions. Second operand 12 states. [2020-10-28 17:22:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:22:52,827 INFO L93 Difference]: Finished difference Result 252 states and 476 transitions. [2020-10-28 17:22:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 17:22:52,828 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2020-10-28 17:22:52,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:22:52,832 INFO L225 Difference]: With dead ends: 252 [2020-10-28 17:22:52,832 INFO L226 Difference]: Without dead ends: 136 [2020-10-28 17:22:52,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:22:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-28 17:22:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2020-10-28 17:22:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-28 17:22:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 212 transitions. [2020-10-28 17:22:52,858 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 212 transitions. Word has length 108 [2020-10-28 17:22:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:22:52,859 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 212 transitions. [2020-10-28 17:22:52,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:22:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 212 transitions. [2020-10-28 17:22:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 17:22:52,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:22:52,862 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:22:52,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:22:52,862 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:22:52,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:22:52,864 INFO L82 PathProgramCache]: Analyzing trace with hash -856975470, now seen corresponding path program 2 times [2020-10-28 17:22:52,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:22:52,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36463585] [2020-10-28 17:22:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:22:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:52,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:52,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:53,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:53,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:53,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:57,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:22:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:22:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:22:57,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:57,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:22:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:22:57,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:22:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:22:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:22:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:22:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:22:57,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:22:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:22:57,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:58,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:22:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:00,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:23:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:23:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:02,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:02,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:02,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:02,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:03,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:06,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:07,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:23:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:07,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:23:08,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:08,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:23:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:23:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 17:23:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:23:08,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:23:08,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 17:23:08,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:23:08,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:23:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:08,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:23:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:08,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 17:23:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 17:23:08,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:23:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:23:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:23:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:08,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:08,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:08,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:08,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 47 proven. 92 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-28 17:23:08,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36463585] [2020-10-28 17:23:08,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:23:08,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:23:08,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271875288] [2020-10-28 17:23:08,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:23:08,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:23:08,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:23:08,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:23:08,829 INFO L87 Difference]: Start difference. First operand 131 states and 212 transitions. Second operand 11 states. [2020-10-28 17:23:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:23:09,548 INFO L93 Difference]: Finished difference Result 261 states and 445 transitions. [2020-10-28 17:23:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:23:09,549 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-10-28 17:23:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:23:09,552 INFO L225 Difference]: With dead ends: 261 [2020-10-28 17:23:09,552 INFO L226 Difference]: Without dead ends: 139 [2020-10-28 17:23:09,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:23:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-28 17:23:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 131. [2020-10-28 17:23:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-28 17:23:09,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 210 transitions. [2020-10-28 17:23:09,579 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 210 transitions. Word has length 111 [2020-10-28 17:23:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:23:09,580 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 210 transitions. [2020-10-28 17:23:09,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:23:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 210 transitions. [2020-10-28 17:23:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-28 17:23:09,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:23:09,587 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:23:09,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:23:09,587 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:23:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:23:09,588 INFO L82 PathProgramCache]: Analyzing trace with hash 897689036, now seen corresponding path program 3 times [2020-10-28 17:23:09,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:23:09,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779720244] [2020-10-28 17:23:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:23:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:09,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:10,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-28 17:23:14,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:14,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:23:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:14,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:14,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:14,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:23:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:14,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:15,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-28 17:23:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:23:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:20,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:21,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:22,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:24,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:24,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:24,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:24,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:24,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 17:23:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:23:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-28 17:23:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:23:25,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:23:25,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:23:25,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:23:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:25,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:23:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 17:23:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:23:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:25,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:23:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:25,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:25,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:30,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 17:23:30,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:23:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:30,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:30,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:30,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:23:32,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2283 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:23:32,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:23:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:23:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:32,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:23:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:23:32,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:32,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:32,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:23:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:32,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:32,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:23:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 17:23:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:23:32,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:23:32,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:32,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:23:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 17:23:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:23:32,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:32,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:32,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:32,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:32,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:32,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:32,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 165 proven. 95 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2020-10-28 17:23:32,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779720244] [2020-10-28 17:23:32,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:23:32,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 17:23:32,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878563091] [2020-10-28 17:23:32,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:23:32,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:23:32,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:23:32,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:23:32,867 INFO L87 Difference]: Start difference. First operand 131 states and 210 transitions. Second operand 13 states. [2020-10-28 17:23:33,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:23:33,590 INFO L93 Difference]: Finished difference Result 225 states and 380 transitions. [2020-10-28 17:23:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:23:33,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-28 17:23:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:23:33,594 INFO L225 Difference]: With dead ends: 225 [2020-10-28 17:23:33,594 INFO L226 Difference]: Without dead ends: 101 [2020-10-28 17:23:33,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:23:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-28 17:23:33,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 88. [2020-10-28 17:23:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-28 17:23:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2020-10-28 17:23:33,609 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 189 [2020-10-28 17:23:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:23:33,609 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2020-10-28 17:23:33,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:23:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2020-10-28 17:23:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 17:23:33,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:23:33,611 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:23:33,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:23:33,611 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:23:33,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:23:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash 597000605, now seen corresponding path program 4 times [2020-10-28 17:23:33,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:23:33,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606556423] [2020-10-28 17:23:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:23:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:33,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:33,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:34,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:36,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:36,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:37,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:37,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:37,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:37,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:38,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 17:23:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:38,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:38,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:23:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:38,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:23:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:38,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:38,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:41,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 29 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:43,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:43,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:45,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 17:23:48,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 17:23:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:48,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:23:48,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:23:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 17:23:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:23:48,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:23:48,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:48,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:23:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 17:23:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:23:48,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 17:23:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:23:48,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:23:48,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 17:23:48,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:48,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:23:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:23:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:48,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:48,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 44 proven. 31 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-10-28 17:23:48,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606556423] [2020-10-28 17:23:48,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:23:48,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 17:23:48,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855633526] [2020-10-28 17:23:48,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:23:48,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:23:48,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:23:48,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:23:48,837 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand 7 states. [2020-10-28 17:23:49,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:23:49,149 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2020-10-28 17:23:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:23:49,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-28 17:23:49,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:23:49,151 INFO L225 Difference]: With dead ends: 153 [2020-10-28 17:23:49,151 INFO L226 Difference]: Without dead ends: 74 [2020-10-28 17:23:49,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:23:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-28 17:23:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-28 17:23:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-28 17:23:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 98 transitions. [2020-10-28 17:23:49,163 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 98 transitions. Word has length 110 [2020-10-28 17:23:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:23:49,164 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 98 transitions. [2020-10-28 17:23:49,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:23:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 98 transitions. [2020-10-28 17:23:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 17:23:49,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:23:49,166 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:23:49,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:23:49,166 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:23:49,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:23:49,167 INFO L82 PathProgramCache]: Analyzing trace with hash -296086045, now seen corresponding path program 5 times [2020-10-28 17:23:49,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:23:49,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851363011] [2020-10-28 17:23:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:23:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:49,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:51,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:53,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 17:23:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:54,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:23:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:54,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:23:54,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:23:54,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:23:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:54,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:23:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:54,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:23:59,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-28 17:23:59,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 17:23:59,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 17:23:59,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:23:59,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:23:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:23:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:23:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 17:23:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:23:59,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:23:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:23:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:23:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:00,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:24:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 17:24:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 17:24:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:24:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:24:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:24:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:04,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 17:24:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:24:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:24:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-28 17:24:04,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:04,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:24:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 17:24:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:04,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:04,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:24:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:05,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:24:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:24:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:24:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:24:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:05,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:24:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:24:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:24:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:24:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 17:24:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 17:24:05,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:24:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:24:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:05,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:24:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 17:24:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:24:05,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:24:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:24:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:24:05,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:24:05,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:24:05,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:24:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:24:05,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:24:05,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:24:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:24:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:24:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:24:05,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:24:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 125 proven. 73 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-28 17:24:05,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851363011] [2020-10-28 17:24:05,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:24:05,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-28 17:24:05,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396297743] [2020-10-28 17:24:05,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 17:24:05,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:24:05,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 17:24:05,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-28 17:24:05,560 INFO L87 Difference]: Start difference. First operand 74 states and 98 transitions. Second operand 15 states. [2020-10-28 17:24:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:24:06,749 INFO L93 Difference]: Finished difference Result 165 states and 274 transitions. [2020-10-28 17:24:06,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:24:06,750 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 125 [2020-10-28 17:24:06,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:24:06,752 INFO L225 Difference]: With dead ends: 165 [2020-10-28 17:24:06,752 INFO L226 Difference]: Without dead ends: 100 [2020-10-28 17:24:06,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2020-10-28 17:24:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-28 17:24:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2020-10-28 17:24:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-28 17:24:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 147 transitions. [2020-10-28 17:24:06,768 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 147 transitions. Word has length 125 [2020-10-28 17:24:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:24:06,769 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 147 transitions. [2020-10-28 17:24:06,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 17:24:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 147 transitions. [2020-10-28 17:24:06,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 17:24:06,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:24:06,771 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:24:06,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:24:06,771 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:24:06,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:24:06,771 INFO L82 PathProgramCache]: Analyzing trace with hash 2083902716, now seen corresponding path program 6 times [2020-10-28 17:24:06,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:24:06,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695533084] [2020-10-28 17:24:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:24:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 17:24:06,786 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 17:24:06,786 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 17:24:06,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:24:06,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 05:24:06 BoogieIcfgContainer [2020-10-28 17:24:06,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 17:24:06,817 INFO L168 Benchmark]: Toolchain (without parser) took 179483.66 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 126.5 MB in the beginning and 372.9 MB in the end (delta: -246.3 MB). Peak memory consumption was 262.7 MB. Max. memory is 8.0 GB. [2020-10-28 17:24:06,817 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 122.9 MB in the end (delta: 120.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 17:24:06,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.92 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 17:24:06,819 INFO L168 Benchmark]: Boogie Preprocessor took 35.89 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 115.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 17:24:06,819 INFO L168 Benchmark]: RCFGBuilder took 555.88 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 100.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 17:24:06,820 INFO L168 Benchmark]: TraceAbstraction took 178632.23 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 100.1 MB in the beginning and 372.9 MB in the end (delta: -272.7 MB). Peak memory consumption was 236.4 MB. Max. memory is 8.0 GB. [2020-10-28 17:24:06,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 122.9 MB in the end (delta: 120.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 247.92 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.89 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 115.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 555.88 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 100.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 178632.23 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 100.1 MB in the beginning and 372.9 MB in the end (delta: -272.7 MB). Peak memory consumption was 236.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L38] int x = 5; [L39] CALL, EXPR fibo1(x) [L10] COND FALSE !(n < 1) [L12] COND FALSE !(n == 1) [L15] CALL, EXPR fibo2(n-1) [L20] COND FALSE !(n < 1) [L22] COND FALSE !(n == 1) [L25] CALL, EXPR fibo1(n-1) [L10] COND FALSE !(n < 1) [L12] COND FALSE !(n == 1) [L15] CALL, EXPR fibo2(n-1) [L20] COND FALSE !(n < 1) [L22] COND FALSE !(n == 1) [L25] CALL, EXPR fibo1(n-1) [L10] COND FALSE !(n < 1) [L12] COND TRUE n == 1 [L13] return 1; [L25] RET, EXPR fibo1(n-1) [L25] CALL, EXPR fibo1(n-2) [L10] COND TRUE n < 1 [L11] return 0; [L25] RET, EXPR fibo1(n-2) [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-1) [L15] CALL, EXPR fibo2(n-2) [L20] COND FALSE !(n < 1) [L22] COND TRUE n == 1 [L23] return 1; [L15] RET, EXPR fibo2(n-2) [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-1) [L25] CALL, EXPR fibo1(n-2) [L10] COND FALSE !(n < 1) [L12] COND FALSE !(n == 1) [L15] CALL, EXPR fibo2(n-1) [L20] COND FALSE !(n < 1) [L22] COND TRUE n == 1 [L23] return 1; [L15] RET, EXPR fibo2(n-1) [L15] CALL, EXPR fibo2(n-2) [L20] COND TRUE n < 1 [L21] return 0; [L15] RET, EXPR fibo2(n-2) [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-2) [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-1) [L15] CALL, EXPR fibo2(n-2) [L20] COND FALSE !(n < 1) [L22] COND FALSE !(n == 1) [L25] CALL, EXPR fibo1(n-1) [L10] COND FALSE !(n < 1) [L12] COND FALSE !(n == 1) [L15] CALL, EXPR fibo2(n-1) [L20] COND FALSE !(n < 1) [L22] COND TRUE n == 1 [L23] return 1; [L15] RET, EXPR fibo2(n-1) [L15] CALL, EXPR fibo2(n-2) [L20] COND TRUE n < 1 [L21] return 0; [L15] RET, EXPR fibo2(n-2) [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-1) [L25] CALL, EXPR fibo1(n-2) [L10] COND FALSE !(n < 1) [L12] COND TRUE n == 1 [L13] return 1; [L25] RET, EXPR fibo1(n-2) [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-2) [L15] return fibo2(n-1) + fibo2(n-2); [L39] RET, EXPR fibo1(x) [L39] int result = fibo1(x); [L40] COND TRUE result == 5 [L41] CALL reach_error() [L4] __assert_fail("0", "fibo_2calls_5-2.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 178.4s, OverallIterations: 16, TraceHistogramMax: 15, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 416 SDtfs, 793 SDslu, 905 SDs, 0 SdLazy, 3799 SolverSat, 711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 607 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 98 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 165.8s InterpolantComputationTime, 1299 NumberOfCodeBlocks, 1299 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1173 ConstructedInterpolants, 0 QuantifiedInterpolants, 245455 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 2163/2696 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...